パッと見ただけでスリーサイズがわかるファッションオタクのマサは、偶然憧れのモデル・SENと会うことができた。
しかし、彼はSENの秘密を見抜いてしまい――?
A teenage boy is obsessively fascinated by a fashionable instagram model. Thanks to her, he found his appreciation for fashion. But then he finds out that the girl of his dreams is in fact a boy, moreover his plain looking classmate!