Mutsuki secretly retains his yandere feelings for his Sensei after fighting Saiko and Urie and works with them to get him out of Dragon hoping he’ll have a shred of affection for his former subordinate or will be overjoyed at the hand he had in saving him which he is. Kaneki is elated to see Mutsuki again and Touka let’s him take Mutsuki on a coffee and bookstore date to make him happy because god knows the poor kids need it

“Touka.” Kaneki, pale and weak and sweating, grabs her in a kiss.

Mutsuki watches, happy. Mostly. He misses Sensei. Like he’s watching a dream end. But it’s okay. He has Saiko and Urie.

Doesn’t mean it doesn’t hurt though.

“Mutsuki!” Kaneki turns to him next, and Mutsuki starts. “I’m so sorry!”

“You are?” Mutsuki asks. His voice is wobbly.

“To all of you.” Kaneki embraces the Quinx one at a time. Even Aura. 

Mutsuki cherishes every moment of his hug before leaving with Urie and Saiko. 

Two weeks later, Mutsuki is surprised to see Kaneki on the door of the Chateau. “Sensei?”

“Mutsuki, would you want to get coffee and search the bookstore with me?” Kaneki asks nervously.  

Mutsuki hesitates. He shouldn’t. This is not going to help him.

“Touka said you seemed to miss me especially hard, so I wanted to make it up to you,” Kaneki adds.

She did? She doesn’t hate him? Mutsuki brightens. “Yes, let’s go.”

The coffee is the best Mutsuki’s had, and he and Sensei manage to find at least three new haiku books they’ve been wanting. 

“Thank you!” Mutsuki beams at Sensei.

“Of course. We should keep hanging out.” Kaneki swallows. “Actually…Urie has asked me to return to the Chateau. But I don’t want to if Touka and I would upset you.”

“No, please do.” Mutsuki clutches Kaneki’s hand. “Please.” 

He gets to live with Kaneki again. They can work on a healthy friendship. And maybe Touka can give him some advice on the sly looks Urie’s been giving Mutsuki.

He begins to cry.

“What’s wrong?” Kaneki asks in alarm.

“I’m just so happy,” Mutsuki whispers.