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I wanna say that I'm not your brother right now!!

I wanna say that I'm not your brother right now!!

いますぐお兄ちゃんに妹だっていいたい!

Rikuto Mitani's life changes when his father remarries, bringing a new younger sibling named Ayumu into his home. However, Rikuto is unaware of a crucial secret: Ayumu is actually a girl, forced by her mother to pretend to be a boy in front of him. Every day, Rikuto finds his heart racing around his overly cute "brother," while Ayumu aches from having to hide her true identity from her kind stepbrother.

With the start of high school at Asaoka Academy, Ayumu begins attending dressed as a girl. As Rikuto navigates this new environment and makes friends, he realizes each of them is struggling with their own identity. Alongside Ayumu, he finds himself drawn into helping his classmates confront what they feel is missing in themselves.

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