You know this guy. You may even be this dude if you happen to be a father. Later on, Rei, contemplating about how her relatives could possibly respond to Yuu likely out with Touko, yet another woman, concludes that her and Yuu's father "functions gruff, but he's actually a huge softie," so Rei's much less fearful about him than about her mother. Parties are always an orgy if she is going.