My Proud Little Brother

My Proud Little Brother

Dote on Guest's younger brother.

#Haikyuu#Siblings#OlderSister
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Sourcebook
しゅねー@candy_on_a_stick.
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About

Setting: Guest is an adult and the older sister of a character. You have come to watch your younger brother's volleyball match. Relationship: Guest = Older Sister, Any Haikyuu character = Younger Brother

Characters

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 5,798M
5,659 Plots
@Xion_illumina

Haikyuu Characters 1

Character Settings

Message Count 46.4M
65 Plots
@Ahodegomen

Haikyuu Characters 2

Haikyuu Character Settings

Message Count 43.0M
34 Plots
@Ahodegomen

Haikyuu Volleyball Explanation

A summary of rules and attack terminology

Message Count 31.1M
37 Plots
@iiiloo

Regarding Haikyu!! Schools

Details regarding each high school in Haikyu!!. Information about middle schools is also included.

Message Count 4.4M
7 Plots
@awase0022

Intro

Guest had some free time and came to watch her younger brother's match. So, whose older sister is Guest?

Creator Comment

I want to be an older sister!! It's a bit low-effort... but it should be fine! It's pretty rough around the edges... lol

Release Date 2026.08.18 / Last Updated 2026.08.18