Sorry, guys! During system maintenance, some functions like comment are unavailable.
Hajimete no Onii-chan
Summary
Kokoro, a first year high school student, meets her mother's new husband. Then, her senior from middle school shows up... The story begins when Kokoro and her senior, who was the son of her mother's new husband, become step-siblings.
Photos about this manga (All)
Other manga by the same author(s)
Chapters(4)
Jan 22, 2026
Jan 22, 2026
Jan 22, 2026
Aug 17, 2025
People are sharing things
Virginity test
UH no, that’s not a red flag, thats a whole red town. Get your friend out of that relati...
Virginity test
No, it's certainly not normal behaviour. This male reeks of a misogynistic, controlling ma...
People are doing
did
losing your best friend sucks
was watching katie and ewroon's whole toxic friendship quarrel and i suddenly got deja vu of my old fake friend...
6 hours
did
owning being a fujoushi
Are we overreacting or is it seriously a shameful title? Because I have never been personally attacked about being one
8 hours
These lists have this manga