Kurosaki/Daisy's text to Teru when she is upset over someone stealing her first kiss in Chapter 32. He tries to cheer her up and tells her he's not bothered by it, only to reveal he is bothered by it and wants to kiss her to make her forget about it, only to say he's just kidding. Needless it say, it freaks out both Teru and Kurosaki (who can't believe he just sent such a text, as Daisy, no less).
When Teru stuffs tissue in her nostrils so that she doesn't get nosebleeds while taking tests. It's her serious, not-trying-to-be-funny expression that actually makes it so funny.