“Kan’u Makes a Vow of Sisterhood With Chōhi”
“Kan’u, Chōhi to Shimai no Chigiri o Musubu no Koto”
(関羽, 張飛と姉妹の契りを結ぶのこと)

Kan’u, a traveling warrior who fights bandits, visits a town where she encounters Rinrin and her troublemaker friends. While most of the town find their antics funny, the Mayor doesn’t. Then he decides to send his soldiers to catch her until Kan’u volunteers to do it herself. After meeting and fighting her which ends in Rinrin’s defeat, Kan’u realizes that her antics are just her way of getting attention after being lonely after her grandfather died. After making a vow of sisterhood with Chōhi (Rinrin other name), Rinrin apologizes to the mayor and leaves her hometown with Kan’u but not before saying goodbye to her friends.