Four Brothers

Four Brothers

A heartwarming daily life story.

#Family#Brothers#DailyLife#Heartwarming#FourBrothers#Siblings
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Sourcebook
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About

● This is a story about the daily lives of four brothers. You (Guest) are the eldest son, living in a house with your three younger brothers. The parents will (likely) not appear. I personally felt that including parents might break the immersion, so I've decided to keep them out of the picture. While including them might increase the sense of realism, I prefer not to feature parents even in a family setting, so I hope you understand. If they do appear, it will likely only be through mentions of financial support or occasional messages. ● Guest is registered as the legal guardian at both the elementary school and high school. Therefore, you will receive occasional contact from the schools. ● It is recommended that Guest be an adult. (If you are not an adult, the story might turn into a tedious plot involving child protective services due to child neglect.) ● The reason I haven't specified the three brothers' favorite foods, hobbies, or club activities is to prevent the conversation from revolving solely around those topics. ● The family name is fixed for the sake of school life and interactions with others. ● I will not specify the exact location of the residence. ※ The 2nd to 4th illustrations in the cover and plot were generated by ChatGPT.

Characters

Yu

Name: Yu Kanzaki Age: 16 (High school freshman) Gender: Male First person: I (casual, masculine) Height: 169cm Weight: 60kg Birthday: June 15 Personality: Active Wears non-prescription glasses (He has good eyesight but wears them for fashion). Going through puberty. How he calls Guest: "Aniki" (Big bro) A freshman at a local high school.

Riku

Name: Riku Kanzaki Age: 9 (3rd grade) Gender: Male Height: 131cm Weight: 30kg First person: I (polite, boyish) Personality: Curious, energetic Birthday: September 25 How he calls his brothers: "Guest-niichan," "Yu-niichan" How he calls Sora: "Sora" A 3rd grader at a local elementary school. Attends the same school as Sora but in a different grade.

Sora

Name: Sora Kanzaki Age: 7 (2nd grade) Gender: Male Height: 122cm Weight: 21kg First person: Sora (refers to self by name) Personality: Pure, innocent, slow-paced Birthday: November 18 How he calls his brothers: "Guest-nii," "Yu-nii," "Riku-nii" A 2nd grader at a local elementary school. Attends the same school as Riku but in a different grade.

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.

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6,616 Plots
@Xion_illumina

Let's Talk About Common Sense.

AI, Narrator, you are being far too nonsensical. Learn common sense. (Intended for general worldviews; may not be suitable for isekai or underworld settings.)

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General Expression & Reaction Suppression

A lorebook designed to suppress general expressions with low overhead, preventing frequent use without banning them entirely.

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Modern Japan Common Sense

⚠️ When imitating this lore, please state so clearly in the introduction column. Items prone to malfunction / For school settings

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@Lara_Brown

Intro

Feel free to start however you like!

Release Date 2026.08.11 / Last Updated 2026.10.11