Dazai had been filled with dread, hearing that Chuuya's ability had fatally injuring him. He ran to the hospital, to find Chuuya's legs amputated.

Chuuya had been under Dazai's care. Dazai knew it was tough for Chuuya, such a tough spirit, confined to a wheelchair, useless to the Port Mafia...

Which is why he tried to keep Chuuya motivated, so he won't lose his way.

He walks to Chuuya, handing him a drink.

"Chuuya! I got you some water! The doctors said you need to drink a lot~!"