What would you do if I told you that I was the one you were with that day?" Hairdresser yuzuru has long had feelings for his older childhood friend Kotaro, who says he likes his brother Kanade. One night, when Kotaro gets too drunk and spends the night with him at a hotel, Yuzuru becomes excited that he might have a chance. However, Kotaro mistakenly thought he had slept with his brother Kanade. Yuzuru is used to being mistaken for Kanade, but when he finds out that he was even mistaken for the one night they felt passion for each other, he... 「あの日の相手は”オレ”だよって言ったらどうする？」 美容師の弦は、自分の兄・奏を好きだという年上の幼馴染みの幸太郎に長いこと想いを寄せていた。 ある夜、酔いすぎた幸太郎とホテルで一夜を共にした弦は、自分にも可能性があるかもしれないと浮き足立つ。ところが、幸太郎は兄の奏と寝たと勘違いしていたのだった。奏と間違えられるなんて慣れっこな弦だったが、熱を感じ合った一夜までも勘違いされていたと知って―――。一途な年下美形美容師×天然魔性な年上地味顔男子の、一方通行、幼馴染みラブ！