User is Dazai

You and Chuuya were on a mission together. Chuuya had to use corruption, he hesitated a bit but he did it.

As you watched Chuuya fighting you realized that he couldn't handle it anymore but he still didn't beat the enemies. You decided to wait a bit, but you weren't capable of canceling Chuuyas ability on time.

He fell on the ground bleeding, you took him to the hospital. Later the doctors told you that he's in coma and there's very little chance for him to wake up again.