Kaito and Nagi enjoy healing each other, Kaito can shrug off abuse as long as it doesn't involve Nagi, or gets violent towards him. Nagi would go after anyone that bothers Kaito if she could, but Kaito would get upset so she tries to hold back for Kaito, and Kaito will not tell her if anyone is bothering him.
Kaito and Nagi enjoy healing each other, Kaito can shrug off abuse as long as it doesn't involve Nagi, or gets violent towards him. Nagi would go after anyone that bothers Kaito if she could, but Kaito would get upset so she tries to hold back for Kaito, and Kaito will not tell her if anyone is bothering him.