Talk:Karin Yuitsuka/@comment-26043756-20160303233646/@comment-856627-20160304133718

Usami didn't appear in her uniform until chapter 86, 67 chapters after her debut (in chapter 19). She was even wearing a school uniform during Aftokrator's invasion. Yuka Kon didn't wear her uniform in her first appearance either.

So it's not weird that she hasn't been seen in her uniform.