Kuroya Naori

Yuzuru’s son and the heir of the Kuroya Clinic. He’s Ayato and Karen’s cousin and old friend. He’s a boy who thinks about things outside of the box, and is quite clever too. He’s studying to become a doctor to take over the hospital.

Naori came up with all of his friends’ nicknames.

"...I’m not sure what there is to be happy about lately, though."