If Kewpie is dirty then you clean him. Normally, Kewpie seems like a pretty chill dog but must turn into a raging beast if he has to have a bath. My dog does that too if there is another dog located over the fence. She's not very personable.
By the way, Kewpie is apparently one of those dogs that can switch sexes because
Kewpie used to be
a girl.