With Serious Faces, the Two of Us Are Naughty: The Compliance Guy Went Beyond My ImaginationNewMajime na Kao shite, Yarashii Futari. Konpura Danshi ga Watashi no Capacity o Koete Kita.; 真面目な顔して、やらしいふたり。コンプラ男子が私の妄想（キャパ）を超えてきた。

Mio Mizutani is a 26-year-old office worker who is such a lust monster that she even masturbates alone at the office. One night, she is caught in the act by her crush, the 29-year-old Wako, and finds herself in a desperate situation. But then he suddenly changes, saying, "I've always wanted to have my way with you, Mizutani." He makes her climax until she nearly faints, and she couldn't be happier—yet the next day he brings out a "No-Contact Pledge." Was his usual strictness all to suppress that side of himself? If so, Mio proposes, "Then how about friends with benefits!?" The indecent contract she speaks aloud unleashes Wako's worldly desires. This is a love comedy about two people who look serious on the surface but are actually quite naughty, each harboring secret feelings for the other.