You know this male. You may well even be this guy if you might be a father. Later on, Rei, thinking about how her spouse and children could possibly respond to Yuu going out with Touko, an additional female, concludes that her and Yuu's father "functions gruff, but he's actually a huge softie," so Rei's significantly less concerned about him than about her mom. Parties are always an orgy if she is likely.