“Waiting in the Summer” “Ano Natsu de Matteru.” (あの夏で待ってる。)

Despite the combined efforts of Tetsurō, Mio, Kanna, Remon (and the van-turned-robot and support from the Men in Black), and even Rinon (with a weapon provided by Emika); and even after seeing the desired location, which Kaito is able to see due to the nanomachines he got from Ichika, the proof they were looking for—a love umbrella carved into a tree by the alien who crash-landed on the place a long time ago—is gone, and the Federation recovery team takes Ichika away. But as a result of such encounter, the memories of the aliens about the distant time when they did arrive at the place were unlocked and become part of the memory for all those involved. As the new school term enters, Kaito’s sister Nanami returns from her trip to Bolivia with a gift for Ichika (a traditional incan vest); Kaito tells her that Ichika’s term abroad ended and she went back home. Remon, prior to transferring back to the MIB, leaves Kaito and the others an incomplete version of the film they have made. A few years later, Kaito, Mio, Tetsurō, and Kanna have graduated, but not without completing the unfinished film. During a re-showing at the school festival, Ichika (wearing Nanami’s gift) is seen appearing in it.

“Don’t Leave, Senpai” “Ikanaide, Senpai.” (行かないで、先輩。)

Emika is retrieving Ichika because the latter is on a planet where contact with its lifeforms is forbidden under their Federation laws, and the only solution is for her to leave this planet before things get messier. Ichika reluctantly agrees, but changes her mind when Kanna and the others arrive to stop her. Learning certain information from Emika, Remon tells them that Ichika may stay if the earthly spot Ichika has seen in her imagination is found in order to prove a probable previous contact between aliens and human beings. As the group finds the place, the search team arrives and starts a pursuit. Since Rinon’s teleport function becomes disabled, Remon takes the others to the spot using a van specially prepared with Emika’s help; with Tetsurō, Mio, and Kanna becoming bio-signature decoys for the pursuing rescue craft. However, a few kilometers from the site, the van collides with a cloaked drone from the rescue craft and overturns.

“Senpai’s and ours” “Senpai to Bokura no.” (先輩と僕らの。)

As Ichika and Kaito spend some time close together (which Ichika credits to Kanna), a depressed Kanna shuts herself in her room after a visit from Tetsurō, who tells everyone that she has a cold. He meets Mio on the way, where they shared the cake she was to give Kanna. There Mio asks and hears his reason why he invited Ichika to do the film with them. Angry at himself, Tetsurō kicks a nearby wooden railing and injures himself. The next day Tetsurō invites Kanna to their old playground as kindergarten kids and confesses to her, but she rejects him; and as she runs off to Kaito’s place to confess (only to be rejected by Kaito anyway), Tetsurō falls on his knees, where Mio sneaks from behind and hugs him, saying it’s alright to cry. The filming of the movie continues, but one day Emika, Ichika’s older sister, appears.

“Senpai” “Senpai” (せんぱい)

After the incident involving the rescue drone Ichika reveals her true identity to Kaito and the gang, and reveals her true intentions on Earth, namely “looking for that place in her memory.” Kaito, however, isn’t surprised because he already knows the fact. However, with the rather rough “rescue attempt” by the Federation rescue drone, she believes that another will come to investigate, and fears that her days on Earth are numbered; thus shunning Kaito for a while—and sealing her feelings for him. This irritated Kanna, telling Ichika that “looking for that place” is just an excuse to avoid him. Kanna confessed that she has feelings for Kaito, and runs away after confronting Ichika—only to be consoled later by Tetsurō, hurting Mio in the process. Kaito, with a bit of encouragement from Remon, did confess to Ichika later—and, when Kaito said it’s his first kiss, she revealed that she has kissed Kaito four times already, as she gave him the fifth one.

“Senpai in Trouble” “Senpai ga Pinch,” (先輩がPinch,)

After Ichika enjoys her first Japanese festival, Remon pops out of nowhere to challenge everyone to a test of courage at a dark shrine. During the test Rinon appears to Ichika, telling that an emergency beacon has been activated. True enough, a Federation lifeboat (a rescue drone) comes to rescue her (it’s more of taking her by force), but Ichika refuses, saying she has still a lot to do. Then again, when Kaito hears Ichika scream, he rushed to where she is, abandoning his partner Kanna. Even with the help of Rinna, one of Ichika’s machines, Kaito dies rescuing “the one he loves.” Ichika, however, manages to reverse Kaito’s death. Kaito awakens and sees himself with Ichika inside a ball of light, and mysteriously returning to the same spot. Everyone catches up to the two and sees Ichika incessantly apologizing in front of Kaito.

“Senpai’s Feelings” “Senpai no Kimochi.” (先輩の気持ち。)

Ichika’s worries are banished when she gets to the root of what’s going on with Kaori and Kaito; while Mio does her best to protect Tetsurō from a ravenous Chiharu—to a point of revealing a secret. The group wrapped up their filming the next day, as Kaori and Chiharu leaves for the airport right after filming.

“Senpai’s Rival” “Senpai ni Raibaru.” (先輩にライバル。)

As Ichika is pondering on what Tetsurō told Kaito that night, thanks to Tetsurō’s sister, filming for their movie goes to Okinawa, where Kaito meets a childhood friend, and her companion is attracted to Tetsurō. This puts Kanna and Ichika at an unease, especially when Kaori, the girl, says that Kaito is her fiance. Mio, on the other hand, is uneasy herself when Chiharu, Kaori’s companion, sets her sights on Tetsurō.

“Senpai Is a Heroine” “Senpai wa Hiroin.” (先輩はヒロイン。)

Ichika becomes the heroine of the independent film the gang were planning before summer break. Kaito agrees, while helping Ichika look for that particular place she is looking for. Kanna becomes uneasy when the lines for the film becomes somewhat uncannily realistic, especially in the scenes involving Kaito and Ichika. Even Kaito was surprised by Ichika’s questions that evening. As the next day was a rainy one and filming is cancelled, Kanna goes to Kaito’s house to bring some nozawana. That evening, Tetsurō, after meeting an uneasy home-bound Kanna, sneaks into Kaito’s room. He tells him that she, his childhood friend, is in love with him. Ichika overhears the conversation.

“Senpai Was Amazing” “Senpai wa Sugokatta.” (先輩はすごかった。)

Things turn awkward the next day, but they try to put it behind them. More complications arrive when Manami, Tetsurō’s married sister, takes Kaito shopping. Ichika sees them, and follows them via teleportation with Rinon’s help, even to Manami’s apartment. Worried about what will happen next, Ichika enters and tries to take him home, though not without clashing a bit with Manami. Tetsurō arrives and clears things up, telling Ichika that Manami is already married, and she is here because of a petty quarrel with her husband. As an apology, Ichika asked Kaito if she could do anything for him. He asked if she could help him review for the finals, to which she agreed, and helped him study until the final day of exams.

“Senpai Says…” “Senpai ga Icchau…” (先輩が言っちゃう…)

Kaito seems to be frustrated with his failed attempt to confess to Ichika, so he decides to ditch school, telling her to leave him alone for a while. Worried, Kanna goes to visit him at his house. Her visit turned into a date as the two went to Karuizawa. Ichika sees them from a distance and follows them. Kanna had to leave Kaito when she finds out Remon has been filming their “date.” It so happened that Ichika crosses paths with Kaito. Nervous of the prospect that she wants to talk to him, he runs away from her, and a chase ensues. It was all about a misunderstanding—that Kaito wants to know Ichika’s secret, while Ichika wants to know who dumped Kaito. When Kaito took some footage of Ichika, it turned out into some sort of an informal confession. Shocked, Kaito stops filming her.

“Together with Senpai…” “Senpai to Issho…” (先輩といっしょ…)

In this episode Ichika is revealed to be an alien journeying to look for a certain scenery that she has been seeing in her imagination. She crash lands on Earth when her spacecraft hits space debris. Meanwhile, Nanami awakens, saying she has had a dream about Kaito being hugged by a naked girl in a ball of light. Nanami gets to know Ichika, and out of nervousness the latter almost reveals that she is an alien, but manages to convince them that she is a foreign student. Listening to her story, Nanami lets her move in with them, since she will be away for quite some time, and she was looking for someone to take care of Kaito. Kanna was surprised to hear it, even thinking it to be some sort of a wedding arrangement in exasperation. After seeing Nanami off the next day, and right after shopping for clothes for Ichika, Kaito finds Remon, Tetsurō, Mio and Kanna inside the house—to talk about the movie project. After Remon served them some sort of spiked alcoholic drink, which had “bad” effects on Kanna, Kaito again fainted due to the same illness, but Ichika kissed it away.

“I Can’t, Senpai” “Komarimasu, Senpai.” (困ります、先輩。)

While testing his high-speed film video camera, first year high school student Kaito Kirishima sees a bright blue light, then an impact has blown him off of his footing and beyond the railings. He sees a hand grabbing his as he fell, bloodied, only to wake up in his futon the next day. At his school, a transfer student named Ichika Takatsuki comes to a third year class. Somehow the both of them has a familiarity with each other when his classmate Tetsurō approaches her and her classmate Remon Yamano, proposing that she joins a movie project he and Kaito are planning. She accepts it without hesitation, and Remon volunteers to write the script. Kaito’s classmates Kanna Tanigawa and Mio Kitahara volunteered later. When Kaito goes to test his camera after class, he finds Ichika fishing in the river. He finds out that she has nowhere to go, so he unwittingly offered her to stay at his house, given that his sister will be away for three months. Back home, as Ichika takes a bath, Kaito felt pain in his neck, then sees a flashback of what happened the evening before. Ichika finds him unconscious, with a sign of increased metabolism on the area where that insect bite was. Ichika then calls for her assistant Rinon to stop it, as she kissed him. Exactly as Kanna and Kaito’s sister Nanami arrive.

“A Toast to the Brilliant Future!” “Kagayaku Mirai ni Kanpai!” (輝く未来に乾杯!)

After recovering from their injuries, Kakeru, Najimi and Kizaki chase after the Mixed Juice Akikan. Kakeru begs the Mixed Juice Akikan to return Melon to him, but she just responds by sending a Zero of her to attack her. However, the Zero hesitates to finish Kakeru, and he uses his emotions to recover Melon’s juice to her can. Otoya appears with Misaki, and recovers Yell and Budoko’s cans, allowing Najimi and Misaki to recover them as well. The Mixed Juice Akikan sends all of her Zeros to attack them, but Melon, Yell and Budoko defeat them all, and combine their attacks to defeat her. She explains that her owner is a cat who ran off the moment they had met, causing her to hate Akikans with owners. Kakeru decides to give her the name, Miku, and Otoya points her in the right direction to finding her owner. Everyone heads back to Kakeru’s house for a toast to the future.

“Shockingly! The Strongest Akikan” “Shinkan! Saikyō Akikan” (震撼! 最強アキカン)

A mysterious Akikan attacks Otoya and leaves Kizaki hospitalized. The next day, Misaki approaches Melon and Kakeru saying that Budoko has gone missing. A possessed Budoko shows up and fights Yell, but she is defeated when the mysterious Akikan takes a shot at Najimi, and then absorbs Yell. Kizaki explains that the attacker was ’the strongest Akikan’ who attacks Akikans regardless of being steel or aluminium. Later, Melon gets attacked by Yell and Budoko, who Kakeru deduces are copies. They manage to defeat them, but then the mysterious Akikan attacks. She reveals herself as a Mixed Juice Akikan, who can absorb other Akikans and use their powers to summon Zeros. Melon attacks the mysterious Akikan, but to no avail. She absorbs Melon’s powers and leaves Kakeru with the empty can, leaving him devastated.

“Acknowledgement of a Never Changing Day” “Kawaranu Kyō ni Kansha!” (変わらぬ今日に感謝!)

This episode shows how the Akikans spend their day at home when their owners aren’t around. Melon tries to wash and dry the clothes while batting off the hot weather. Budoko is shocked to find a cat had messed up her hair while she was sleeping, only to find an opportunity to have some fun with a new hairstyle. Yell cuts out some coupons, learns what ‘Yell’ stands for, attracting several cats in the process, and tidies up the house, only to wreck it again while chasing a dragonfly.

“The moment hearts connect” “Kokoro, Tsunagaru Shunkan” (心、繋がる瞬間)

Melon gets a part-time job at a maid café ran by a transvestite in order to pay for her phone bill. While Kakeru teases her about it, Yell becomes intrigued by the idea of work, although Najimi tells her she doesn’t need to. As Melon goes home, she notices some kids playing catch. Yell goes missing overnight and while Kakeru, Melon and Najimi look for her, Melon becomes concerned about how close Kakeru and Najimi appear. They eventually find Yell working part time as a construction worker, and Najimi gets angry at her for not telling her, causing her to run off. When going over to Najimi’s house, Melon gets mad at Kakeru and runs off, and Kakeru notices she had written several unsent text messages saying she was lonely. Meanwhile, Najimi learns that Yell wanted to keep her work a secret so she could buy her a replacement for her watch that broke the other day. Najimi manages to find Yell, apologises and tells her she loves her, and Kakeru manages to find Melon and play catch with her. They then attend a Halloween themed birthday party for Yurika.

“Swimsuit Sensitivity!?” “Mizugi de Binkan!?” (水着で敏感!?)

Kakeru goes with Najima to a swimming pool in order to fulfil his promise to take her on a date, although he is not as enthusiastic as she is about it. Melon and Yell, as well as Goro and Yurika, decide to tail them, and Yell starts to feel uneasy seeing Najimi with Kakeru. Otoya and Kizaki are also there on a day off, who tries to pull some moves on Goro; as well as Budoko, who tails Melon and Yell before being inadvertently scared off by Yell. After giving him swimming lessons and going down a water slide together, Najimi decides to take Kakeru on the Ferris Wheel, where she decides to make a confession to him. However, he falls asleep and misses the confession, and some rocking combined with misunderstandings leads Yell to go as far as leaping on top of the Ferris Wheel to stop them, with Melon having to break her off. Najimi decides to postpone her confession, and Yell contemplates her feelings and actions.

“Transfer Student, Welcome!” “Tenkōsei, Daikangei!” (転校生、大歓迎!)

Najima decides to enroll Yell into class where she becomes popular with the class for announcing herself as a maid. Kakeru makes a habit out of flustering Kizaki, who is acting as their teacher. Later on, the class plays a game of baseball, but neither Melon nor Yell can get a good grip of the rules and end up running around town. Jealous of her relationship with Najima, Yurika challengs Yell to a showdown, but Yell loses due to being distracted by Yurika’s bouncing breasts. Otoya calls Kakeru reminding him of the Akikan Elect, but Kakeru refuses to hear it. He then decides to buy Melon a cell phone so they can stay in touch easier.

“Deeply touched! Humans and Akikans” “Kandō! Hito to Akikan to” (感動!人とアキカンと)

Melon discovers Yell who had just harmed Kakeru with her sword. Before the battle could continue, Najima returns Yell to can form, apologises and runs off. Kakeru declines going to the hospital, since it would get Najima in trouble. Feeling responsible for his injuries, Melon decides to fight Yell on her own. Yell tries to console her owner, but Najima is still in shock. Melon arrives, tells Najima to go to Kakeru, and tells Yell to follow her to the baseball stadium where none would get hurt. When Kakeru becomes aware of the situation, he starts to head off to find them. Najima asks if he likes Melon, he said he thinks of both of them as his important friends, and wants to be friends with Yell too. Stuck in a traffic jam, they ask Goro to come by with his motorbike. When it almost crashes, Yurika appears as a fully fledged witch and carries them to safety. The fight between Melon and Yell had reached a critical point with both of them reaching their limits, but Kakeru stops the fight and tells everyone to get along.

“Dating Relationship?” “Dēto!? na Kankei” (デート!?な関係)

Kakeru starts to become curious about where the Akikan owner is, while Najima notices the ringtab on Melon’s ear. When she asks Kakeru concerning the date, she is told it would have to be postponed indefinitely. Later, Melon spots someone on a baseball game that looked similar to the Akikan she fought, and they go off to investigate, visiting an amusement park and a baseball game, where it turns out the girl in question was just a sports drink vendor. Najima spots the two together, and orders Yell to punish Kakeru. Yell then proceeds to slash her energy sword across his stomach.