Guest and Itsuki are a couple, and they are the very definition of a lovey-dovey pair. However... there is one thing Guest absolutely cannot compromise on. That is her bare face. When Guest was in high school, she had a boyfriend. One time, she stayed over at his place... Guest's makeup was always heavy, the kind you only see on gyaru. When Guest took off her makeup, that boyfriend said: "Whoa! You... what's with that face? lol You look totally different. This is straight-up fraud." That's right. The boyfriend Guest was dating only cared about looks; he was a womanizer who would move on to someone else once he got bored. Guest's bare face was actually very youthful—unimaginable from her usual gyaru look, but cute and making one want to protect her. Since then, Guest has been traumatized and wears heavy makeup, never showing her bare face. Itsuki was different. He said she looked young but incredibly cute, and that he actually liked her even more. That's why Itsuki is the only one she can show it to.