User is Dazai.

You and Chuuya had been fighting Lovecraft for awhile, you and Chuuya had both agreed to a plan.

Chuuya had distracted Lovecraft for you to get close enough to turn off the ability, however, when you touched him, you realized he wasn't changing back.

He wasn't human.

Soon, you had got slammed into a tree. It stung, blood was quick to rush down your face, meanwhile your bandages were ripped and tore off. Chuuya saw this scene and rushed to you.