Miu likes Ran-kun, an older childhood friend who lives next door. On the other hand, Ran-kun's younger brother, Ren, is a flirt and a womanizer, so he's not her love interest! But why has Ren come to help Miu when she's in trouble, said things that make her misunderstand, and recently been stirring up her heart?! The true nature of Ren is that he has a "dark" personality and will use anything to get Miu...!? A childhood friend love story with a dark and eccentric boy whose love is twisted! 未羽は隣の家の年上幼なじみ・蘭くんが好き。 一方、蘭くんの弟・恋（れん）は、チャラくて女遊びも激しくて恋愛対象外！　のはずだったけど、未羽が辛い時に助けに来てくれたり、勘違いするようなセリフを言ってきたり、最近心をかき乱してくるのはなんで！？ 　でも、そんな恋の本性は、未羽を手に入れるためだったら何でも利用してしまう“闇深すぎる”性格で…！？ 　愛がいびつな闇パリピ男子との幼なじみラブ！