Cheshire Cat Grin: When Chihaya turns that smile on you, it's time to run for cover. Even Ryoichi backs down in the face of it.
Naked First Impression: The protagonist's first encounter with him in the prologue is just as he's stepping out of the shower in the VIP suite wearing only a towel. She finds it much more awkward than he does.
Fixing the Game: Just one of the many kinds of con that make up Mirai's bag of tricks. Among other things, he's the reason the protagonist wins the drawing in the prologue.
Guile Hero: Messes with the bank account of a journalist who falsely attacked Ryoichi.
Beware the Nice Ones: Satsuki Kitaoji is one of the most genuinely decent people you could ever hope to meet, but hurt his friends and family and he will give you one chance to mend your ways, while outlining exactly how he will crush you if you don't — all without ever dropping his exquisite manners.
Mundane Object Amazement: It's more like a mild fascination than overt amazement, but he has a particular interest in middle-class life. He keeps a stash of cheap junk food, and during his route he spends a short time living in the apartment next door to the protagonist, dressing in casual clothes she picked out for him and trying out the lifestyle for himself.
Nice Guy: Is unfailingly polite and considerate towards everyone, especially the protagonist.
Team Dad: Chastises Ryoichi for acting perverted around the protagonist.