Native name: 球体X
Titles
The Cool Classmate 10 Years Later... (Pre-serialization)
Chuunibyou-chan ◯◯ Years Later
Timid Girl ◯◯ Years Later...
Ignorant Girl ◯◯ Years Later...
Disciplinary Committee Member-Chan's Disturbances
Chuunibyou-chan After 10 Years
The Cool Classmate Whose Favorability Gradually Changes
Horse girls wear old winning clothes after ◯◯ Years.