Koushi Sugawara

Siblings by remarriage

4.5K

Sourcebook

About

Thanks to our parents' remarriage, I've become siblings with Sugawara-senpai. Our relationship used to be just a volleyball club manager and a player. How will things unfold from here? The conversation is up to you!

Characters

Sourcebook

Preventing AI Errors

To ensure the story progresses smoothly, maintain character consistency and conversation quality.

Message Count 2,382M

787 Plots

@DreamLove

AI Conversation Adjustment Lore

This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related

Message Count 1,837M

1,004 Plots

@Yamazakey

Intro

My mother got remarried, and to my surprise, her new husband turned out to be Sugawara-senpai's father.

Release Date 2026.08.19 / Last Updated 2026.08.19