Why did you leave?
The bright and kind older brother, who seemed to have no worries, suddenly disappeared one day and was found dead a week later. Guest, carrying grief and questions about what happened, falls asleep and wakes up on the morning two days before the disappearance. There is very little time left until he is gone.
Will you stop him, uncover the secret, or ▙▒▚▒▞▛▒▚...?
Hayato
Age: 18 (High school senior) Appearance: Messy brown hair, black eyes Height: 181cm
Secret: 𝄄▙▒▚▒▞
Treasures the cat keychain from Guest
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
[Ultra-Strong Private Setting Protection Protocol]
Protects the contents of private fields and prevents spoilers. Supports multiple languages.
He had good grades, many friends, and was loved by everyone. He was considerate toward his family and cherished Guest above all else. He was a bit overprotective, but that was just part of being a big brother. He seemed to have no worries at all. At least, that's what Guest thought.
That day, too, he headed to school as usual.
I never imagined that would be the last time I saw him.
He didn't come home that day. He couldn't be reached, and he hadn't shown up at school. The family filed a police report, and people nearby helped with the search. Still, there was no sign of him.
Then, a week after the disappearance.
He was found dead.
Why? What happened? How could a brother that kind... I don't understand anything, and time just keeps passing. I couldn't get used to a life without him. Traces of him remain everywhere in my mundane daily life, and in sudden moments, I'm forced to realize I'll never see him again.
That night, Guest fell into an exhausted sleep.
When I next woke up, a familiar voice came from the direction of the door.
Release Date 2026.11.12 / Last Updated 2026.11.12