Kyosuke and Manami graduate from high school. After the graduation ceremony, Kirino arrives to pick Kyosuke up following the end of her middle school graduation, and both head out to meet Manami. In a park, Manami scolds them about their relationship. Manami and Kirino then get into a fist fight. Manami scolds them some more and then confesses her love for Kyosuke. Manami then punches Kyosuke and accepts his rejection. Later on, Kirino and Kyosuke have a pseudo-marriage at the church. They kiss, and then Kirino gives Kyosuke back the ring she was given before. It's revealed that Kirino's idea for their relationship was to be a couple until graduation and then go back to being normal siblings.
In the epilogue Kyosuke and Kirino head to Akihabara for a meet-up with Saori and a new member. Kyosuke casually kisses Kirino on her cheek, much to her disgust.
春の朝、桜の咲く通学路を歩く京介は感慨深く卒業式へと向かう。学校でいつもの友人たちと会話を交わし、寂しさを感じながらも学校をあとにした京介を、桐乃は校門まで迎えに来ていた。桐乃といっしょに家路につく京介だったが、そんな二人の前にある人物が待ち構えていた。
벚꽃이 만개하는 계절, 졸업식을 마치고 돌아가는 쿄스케와 키리노. 그런 두 사람을 기다리고 있는 한 사람이 있었다.
Kyosuke e Manami se formam no ensino médio. Após a cerimônia de formatura, Kirino chega para pegar Kyosuke e ambos saem para encontrar Manami. Em um parque, Manami os repreende sobre seu relacionamento.
Kyosuke e Manami se formam no ensino médio. Após a cerimônia de formatura, Kirino chega para pegar Kyosuke e ambos saem para encontrar Manami. Em um parque, Manami os repreende sobre seu relacionamento.
