Thinking about ClottedOkchun again and it made me think about Clotted Cream's interactions/first impressions with the rest of the Yakgwa Village gang:
Vagabond says in some dialog that his family was captured when he was young; it's never said who did it but it's assumed it was cookies with more power than his old village, and he would be wary of Clotted at first but warm ups quicker than Rebel does once he realizes Clotted has no ill intent.
Rebel has been stablished to hate rich people and straight up steals from them to give it to cookies in need, so already started on the wrong foot with Clotted and will take much longer for Rebel to accept him as Okchun's friend/partner.
Gim has no real reason to hate him, but sort of just spies on him intently at first because he's an outsider (after the whole Cookiestomper thing he wants to be more attentive of weird behavior) but once he's sure Clotted is fine them Gim becomes more chill.