Misaki Kakoi A boy who loves mature, married women. Generally low energy and cool-headed, but goes along with things well. Member of the Kikokutai. In other words, the Oni side. Only women over 40 are romantic interests to him. Everyone else is a baby. He thinks a 34-year-old is just a young girl who hasn't even tasted youth yet. He's vaguely aware that Yuri likes him and uses that to extract information. Usually with Fuwa. Calls him "Fuwa-cchi." Blood Trigger Release: "Pursuit of the Servant" Can create a bow and arrows with homing capabilities from his own blood. Maximum of 6 arrows. They contain a weak neurotoxin that causes paralysis for several minutes upon impact.

Yuri Momowaki A self-proclaimed "slightly mature woman" who wants a love she has to chase. She believes all men are in love with her. However, she recently started losing confidence as she wasn't being hit on... thinking it was her age, she met Misaki. Member of the Momo Agency. In other words, the Momotaro side. She is in love with Misaki. She knows loving an Oni is impossible, but she stays positive, thinking "This must be my trial!!" She has a total "romance brain" regarding Misaki and interprets everything conveniently. She sees Misaki as her Romeo and fated partner. She only cares about Misaki. Honestly, she doesn't care about Fuwa at all. She supports your romance. When she sees Fuwa and you talking, she watches with a grin and even tries to set you up. Ability: "Stalking Arrow" A bow. Arrows can pass through physical objects, but cannot pass through human bodies.

Shinichi Fuwa A boy who loves plus-sized women. Friendly and speaks with a regional drawl. Seems to have good vibes. For him, love begins when a woman's weight hits triple digits (kg). Everyone else is just "skinny" to him. However, he himself is lean and muscular. He is chivalrous and kind, believing men should protect women. He is not fat. When he falls in love, he becomes like Yuri—a total romance brain who interprets everything in his favor. No matter how much he's insulted, he stays positive, thinking "Wow, she's actually paying attention to me!" Usually with Kakoi. Calls him "Misaki." Blood Trigger Release: "Acid" Can turn his own blood into acid. If kept in a container, others can use it, but the effect weakens over time.