What type of processing is exemplified here? Even though you normally like iced tea, you took a drink of iced tea when you were expecting soda, and the iced tea tasted terrible!

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.

i have a picture for anyone who wants to answer this.