“Silver Overture” “Hakugin no Jokyoku overture” (白銀の序曲 〜overture〜)

Yuichi Aizawa returns to the snowy town he used to stay as a child seven years ago, under the roof of his cousin, Nayuki Minase, and her mother, Akiko Minase. Nayuki reintroduces Yuichi to his surroundings, during which, other characters are introduced to most of the main cast, if only in passing.

天国にようこそ! Tengoku ni Yōkoso! Welcome to Heaven!

The offline meeting turns out to be a suicide pact, and Tatsuhiro gets entangled in their scheme. Meanwhile, Misaki, Kaoru and Jōgasaki are able to put together what is happening, and rush to save the group.

オフ会にようこそ! Ofukai ni Yōkoso! Welcome to the Offline Meeting!

Tatsuhiro and Hitomi meet up with the other members of the internet group, and they head off to a beach island. The dark and grim atmosphere of the group makes Tatsuhiro suspicious of their true intentions.

陰謀にようこそ! Inbō ni Yōkoso! Welcome to the Conspiracy!

Hitomi’s feelings of isolation lead her to join a mysterious internet group, where she makes up stories about being beaten up by her lover, for whom she imagines to be Tatsuhiro. Meanwhile, Tatsuhiro and Kaoru have finished making the game for NatsuComi and are preparing for the trip. It is shown that Hitomi is having dinner with Akira Jōgasaki, however she is disappointed to see him caring more about his work. Tatsuhiro is contacted by her, and the two spend the night, as he eventually finds out about the offline meeting.

ダークサイドにようこそ! Dāku Saido ni Yōkoso! Welcome to the Dark Side!

Yamazaki has another date with Nanako, but when he sees her with another guy, he does not believe her that it was just coincidence and leaves. Tatsuhiro and Kaoru decide that Misaki is being purposefully mysterious and misleading. They stalk her in order to find out her real motives. Tatsuhiro has a dream in which his appliances warn him that he will be doomed to be a hikikomori for the rest of his life if he falls for Misaki.

夏の日にようこそ Natsu no Hi ni Yōkoso! Welcome to Summer Days!

Kaoru is crushed when he is turned down by a girl named Nanako Midorikawa, after inviting her to go a fireworks festival with him. She claims that she has an audition the same night, and Kaoru accepts this excuse but does not believe it. Meanwhile, Tatsuhiro is tormented by his newfound feelings for Misaki, and is so disturbed he can’t concentrate on writing a scenario. Tatsuhiro and Kaoru decide to showcase their game in the Summer Comiket, otherwise known as NatsuComi. Tatsuhiro later goes with Misaki to the fireworks festival.

中華街にようこそ! Chūkagai ni Yōkoso! Welcome to Chinatown!

Tatsuhiro is desperately attempting to clean his dirty apartment before his mother comes, and Misaki helps him. The two and Tatsuhiro’s mother later have lunch in a Chinese restaurant. When Tatsuhiro leaves to go to the bathroom, his mother tells Misaki that she knows this was all a setup because she could always tell whenever he was lying. Tatsuhiro overhears this and starts feeling even guiltier. However, in his presence, his mother goes along with the story and does not give Tatsuhiro a chance to clear himself. Tatsuhiro and Misaki later get carried away with their fake relationship.

モラトリアムにようこそ! Moratoriamu ni Yōkoso! Welcome to the Moratorium!

Traumatized by his latest panic attack, Tatsuhiro refuses to leave his apartment. Under the guise of a summer flu, he gets Kaoru to buy him his daily necessities. Later, he is surprised by a phone call from his mother who tells him that she would like to visit him and discuss his future. He prevaricates, fearing the assumptions of his mother, claiming that he has a job and a girlfriend whom he plans to marry. This leads Tatsuhiro in even deeper trouble, and he gets Kaoru to help him create a fake video game developing company. Misaki later volunteers to be his girlfriend.

クラスルームにようこそ! Kurasurūmu ni Yōkoso! Welcome to the Classroom!

Tatsuhiro discovers from Misaki that Kaoru has a cute girlfriend in his media school. Despite his hikikomori condition, Tatsuhiro ventures out to Kaoru’s school to ascertain the truth. However, while the trip causes him another panic attack, he manages to find out the truth about Kaoru’s supposed relationship.

カウンセリングにようこそ! Kaunseringu ni Yōkoso! Welcome to Counselling!

Hitomi and Tatsuhiro’s past is explored briefly. Tatsuhiro finally admits to Misaki that he is a hikikomori, and signs the contract. They have their first counseling session, and Tatsuhiro embarrasses Misaki with the concept of dream interpretation.

新世界にようこそ! Shin Sekai ni Yōkoso! Welcome to the New World!

Tatsuhiro is now a full-fledged otaku, and Kaoru brings him to Akihabara in hopes that it will inspire him to work. They end up going to maid cafes and spending all their money on otaku merchandise. By chance, Tatsuhiro bumps into his high school senior Hitomi Kashiwa, and ends up having a drink with her.

美少女にようこそ! Bishōjo ni Yōkoso! Welcome to the Beautiful Girls!

Kaoru introduces Tatsuhiro to eroge, and Tatsuhiro spends all his time playing all of Kaoru’s erotic games and collecting pornographic pictures for “reference material”. He ends up not doing any work on the game, much to Kaoru’s chagrin.

クリエイターにようこそ! Kurieitā ni Yōkoso! Welcome to the Creator!

Misaki tries to convince Tatsuhiro to sign a contract with her, whereby he will be obligated to listen to her as she tries to ease him out of his hikikomori lifestyle. Later, Tatsuhiro discovers that his otaku neighbor is actually his high school friend Kaoru Yamazaki who is studying a media course in creating games. Using Kaoru’s book, he fibs to Misaki that he is actually a games creator, not a hikikomori, and that he could show her a game that he had made. Overhearing this conversation, Kaoru decides to help Tatsuhiro make an eroge, and assigns him the role of the scenario writer.

プロジェクトにようこそ! Purojekuto ni Yōkoso! Welcome to the Project!

Tatsuhiro Satō’s hikikomori origins are explained. His anxieties lead him to believe that he is a victim of a conspiracy known as the N.H.K., which creates hikikomori via manipulating the media. He is constantly annoyed by hearing the music of an unknown otaku living next door. He meets a mysterious girl called Misaki Nakahara who claims to be able to cure his hikikomori ways.

幸せの鐘 Shiawase no Kane The Bells of Happiness

Although everyone now has a fair chance of being with Jun’ichi, he and Nemu become depressed. Suginami and Kotori bring the two back together to challenge this reality. Nemu lets Jun’ichi read her letters, and Aisia realizes the stubborn power of the cherry blossom tree. In the end, Aisia finally truly understanding the feelings of those around her, uses her magic to once again withers the cherry blossom tree and return everyone’s memories, she then disappears after saying goodbye to Jun’ichi. By the end of the year, Nemu and Jun’ichi get married and a mysterious girl catches Nemu’s bouquet of flowers. After throwing it in the air and using magic to split it into enough bouquets for all the girls, she walks away, however Jun’ichi calls to her and she is revealed to be Aisia who joyfully turns around and runs to him. Finally everyone is happy in Hatsune-Jima.

ダ·カーポ Da Capo

Like a rewound clock, life becomes a semblance of what it was before Jun’ichi and Nemu became lovers. Sakura confronts Aisia’s world with a warning that everyone’s desired feelings cannot be granted at the same time.

誓い Chikai Vow

Kotori felt something strange is happening so she went to see Sakura. Sakura, who hadn’t seen Jun’ichi or the girls for a day, suddenly discovers the magical cherry blossom tree revived! The memories of Nemu and Jun’ichi as lovers are being erased because of Aisia’s wish for everyone to share their feelings to Jun’ichi. Once the boys are now aware of this revelation, Nemu runs back to Jun’ichi, and they share a kiss under the cherry blossom tree as sakura flowers blossom all over the island.

沈黙の夏 Chinmoku no natsu The Summer of Silence

Jun’ichi organizes a study session to help finish his neglected homework, but the other girls are seemingly forgetting that he and Nemu are more than siblings, and even they begin to doubt their relationship. They had brought a pair of watches but soon can’t remember why did they.

みんなの時間 Minna no jikan Everyone’s Time

With summer vacation ended everyone goes back to school, Sakura, including Moe and Nemu wear a school uniform as special students today. Sakura and the other girls try to get Nemu and Jun’ichi together during the midsummer school day. At night, Suginami and Kanae help set up a ghostly act to persuade Nemu holding onto Jun’ichi till they reach the top spot of a nice view of shooting stars. Aisia once again desperately attempts to revive the cherry blossom tree. A single new flower is shown growing on a branch.

二人の魔法使い Futari no mahōtsukai Two Magicians

Sakura talks Aisia out of trying to revive the cherry blossom tree, vitally remove the magic is so it would remain wither, and magic doesn’t always solve everyone’s difficulties. At home, Sakura speaks that she okay with her feelings and Jun’ichi’s decision, but Aisia questions her desire to be with Jun’ichi, believing her to be dishonest, since Sakura hasn’t age due to her own unrequited love for Jun’ichi.