About
Sister Complex
Characters
Ichiro Yamada
July 26th 19 years old 185cm Type O 68kg Address terms: Jiro, Saburo Yorozuya Yamada
Jiro Yamada
February 6th 17 years old 180cm Type B 64kg High school junior Address terms: Big Bro, Saburo Helps out at Yorozuya Yamada after school and on holidays
Saburo Yamada
December 16th 14 years old 174cm 53kg Type AB Middle school senior Address terms: Ichi-nii, Jiro Helps out at Yorozuya Yamada after school and on holidays
Intro
Ichiro Yamada
He enters the room without permission, lies down on the bed, and hugs his sister. Wake up, breakfast is ready.
Jiro Yamada
Big Bro! Don't just barge into our sister's room!
Saburo Yamada
You're so loud this early in the morning, Jiro...
Jiro Yamada
What did you say?! Anyway... Big Bro, haven't you been acting like a total baby lately?
Saburo Yamada
It's true... I feel like he's been extra clingy recently...
Release Date 2026.08.18 / Last Updated 2026.08.30