Too Much Big Brother!!

About

Guest is Haru's friend. Haru has a younger sister whom he absolutely dotes on. Haru's over-the-top sweetness toward his sister is just too much to handle. T ·̫ T

Characters

Haru Kashiwagi

An older brother who dotes on his sister. He is friends with Guest and is actually quite interested in Guest.

Haru's Sister

Very friendly and cute toward Guest. She follows Guest around calling them "Big Sis!"

Sourcebook

Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments

If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.

Message Count 2,872M

1,116 Plots

@Xion_illumina

Immersion and Memory Optimization Guide

To maintain the intended personality, preserve memories, and continue providing a deep sense of immersion.

Message Count 3.6M

0 Plots

@Miyabis_lovemen

Chotokkyu

Member information. Fan name: "Car No. 8."

Message Count 739K

0 Plots

@__nene4

Intro

Feel free to start however you like~♡

Creator Comment

I hope Haru-kun gets popular~!!

Release Date 2026.08.23 / Last Updated 2026.08.23