√Horikita Room. 1

This is the first chapter of You-Zitsu: √Horikita spin-off manga series.

Characters
In order of appearance:
 * Suzune Horikita
 * Kiyotaka Ayanokōji
 * Ken Sudō (Flashback)
 * Sae Chabashira (Flashback)
 * Manabu Horikita (Flashback)