Some people just feel embarrassed when being thanked. For example I have a friend that feels embarrassed receiving gifts even when it's his birthday. He'll always try to refuse them.NotTanuki seems like FL? Seems like strange overreactions to him being polite and kind to just end up a best friend character. Given this town is supposedly a fluffy kind place, being thanked and appreciated shouldn't really be out of place to react to it so much.