“Ex-lovers become step-siblings in forbidden romance when Kokoro's mom marries her obsessive ex-boyfriend Aoi.”
Hajimete no Onii-chan
はじめてのおにいちゃん
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Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
Synopsis
Ex-lovers become step-siblings in forbidden romance when Kokoro's mom marries her obsessive ex-boyfriend Aoi.
This guy is way too exciting and dangerous! The obsessive romance comedy begins♡ Kokoro is a new first-year high school student living with her single mother. When they go to meet her mother's new fiancé... who shows up is none other than her ex-boyfriend, Izumi Aoi-senpai! She thought she was the only one still thinking about him, but it turns out Aoi cherished their past memories too—he'd even kept a candy wrapper for two whole years. He seems... pretty intense!? Aoi declares, “Lovers part ways when they break up, but siblings can never truly sever their bond.”, leaving Kokoro to ponder... What will become of this forbidden step-sibling relationship between former lovers──!? (Source: Shueisha, translated)
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A Manga Publication
- Published Jul 2025 – ongoing
- Source Manga media type
- Ref. BS-M87147 catalog