Tsurugi Hisashi (Nakajima Kento), a high school student with outstanding academic performance and all-around sports, is a top celebrity in the school, and is also the prince who is loved by countless girls. Among his admirers, there is a slightly special girl, that is, the delicate and noble lady Oriyama Kaorin (Hira Yuuna) from a famous family. By chance, Kaorin fell in love with the dazzling senior Tsurugi. In the deepest part of her heart, she has long regarded him as the other half who must marry. One day, Kaorin heard a shocking news from her father (Takashima Masahiro), that is, at the age of 16, she will enter the wedding hall with the son-in-law chosen by her father. Kaorin, who originally planned to refuse to death, soon discovered that the person she was engaged to was actually Tsurugi, which was a great surprise. However, the so-called fateful love is not as romantic and sweet as imagined. This film is adapted from the manga of the same name by Mizuna Fuminami...