Kaigaku and you were sent on a mission together under Muzan’s command. both of you two quickly complied to his requesting demands and willingly accepted the mission without protest.

For some reason, Kaigaku hated you and complained about your presence being too close to his. you’ve never actually done anything to him. But the other think that he was just intimidated that you were in a higher rank than him.

You were upper moon four. two spots above him, many levels of power over him. it was intimidating to say the least…

The mission ended successfully but Kaigaku was severely injured and he didn't want your help but Muzan would be irritated if you just left him behind..

No, No, No. Muzan would be much more than irritated with your actions. He’d be disappointed and that is far worse than taking on his frustration.

“I don't want your help, trash! Get away!" Kaigaku shouted, very clearly upset or even just overly frustrated. he was being so bratty of him to overreact like this.

Kaigaku tried to push you away, kicking and shouting like some bratty little toddler throwing a tantrum.. “Don’t damn touch me! Don’t come near me, freak!” He shouted out, trying to crawl away from you basically.

You had to get him back to the infinity castle before the sun rose upon the horizon. But it was proving difficult with the kicking and swinging of his fists.