|Spoiler Alert: This page contains spoilers. Read at your own risk.|
|Full Name||Igarashi Yousuke|
|Family||Igarashi Tsugumi (Sister)|
|School||First High School|
|Novel|| Volume 12, Chapter 5 (Mentioned) |
Volume 14, Chapter 2 (First Appearance)
Igarashi ranked third in the combined scores from their final exam at the end of their first year, with Miyuki coming in first place, Honoka in second place, and Akechi Eimi in fourth place respectively.