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Hajimete no Onii-chan

Hajimete no Onii-chan

はじめてのおにいちゃん

Kokoro, a first-year high school student, is adjusting to a new chapter in her life when her mother remarries. Meeting her new stepfather is surprising enough, but the real shock comes when she discovers that her new stepbrother is none other than her senior from middle school—the boy she used to look up to. Now, under the same roof, their relationship takes an unexpected turn as they navigate the awkwardness of becoming a family.

What starts as an ordinary family blending together quickly becomes complicated. Kokoro and her stepbrother must deal with the lingering feelings and memories from their past, while also facing the everyday challenges of school, friendships, and growing up. Their new sibling bond is anything but simple, and every shared moment brings them closer, blurring the lines between family and something more. As they try to figure out what they mean to each other, their interactions become a delicate dance of old crushes, new responsibilities, and the strange dynamics of a rebuilt household.

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