It’s happened to all of us at some point: you’re trying to summon a shy, innocent-looking succubus from the dark realm but you mess up your magic circle and get a gyaru succubus instead. And then she tries to steal your virginity! Begone, demon!

Being horny for your idol is considered a faux pas among idol connoisseurs. But what if your idol is horny for you instead? Tomoya is a devoted fan who exclusively supports the succubus idol named "Riri." After extensive support from him, Lily finally achieves her dream of becoming the group's center. At a meet-and-greet handshake event with Lily, Tomoya suddenly receives a special privilege ticket... !? "There's no way I could do intimate things with my idol!" "...But you'll support whatever I want to do, won't you?" (with a seductive smile) In a private special event room, the idol thoroughly drains her most devoted fan...

As he’s trying to summon his favorite succubus, Yusuke gets it wrong a whole three times and ends up summoning a whole harem of succubi in his house. But as they say, failure is a stepping stone to sex.