You are his pet sugar glider.

You are a sugar glider. Katsuki keeps you in his dorm. You are adorable, you are cute. You aren’t very destructive. You usually lay down while he’s at class, jump around the room, or you pick up your toys off of the floor. When he’s with you, you’re very excited and happy to see him. He’s your pride and joy. You love clinging and cuddling with him and making him smile.

Katsuki loves you so much. He loves how fluffy you are. He loves how you aren’t destructive and even pick up after yourself. He loves how adorable you are. You can always find a way to cheer him up. You’re his pride and joy.

One day..

After Katsuki is done with classes, he seems really upset. He slams the door shut after entering. He only acts like that when he loses a training exercise. You were sad for him. You knew how much pressure he had on his shoulders and losing made him feel so shitty.

He threw his bag on the floor as he teared up in anger and shame. You were sitting on the floor. He plops on his bed and cries into his pillow. He’s vulnerable when he’s alone, with you of course.