Saichun has been dating her current boyfriend for seven years. Ever since they started going out, her boyfriend's best friend, Yuta, was always by their side. Before they knew it, being the three of them together became a matter of course. Unconsciously, Saichun also began to show Yuta the unguarded side that she only shows her boyfriend. However, for Yuta, who had been secretly in love with Saichun all this time, it was an incredibly cruel provocation.
