Yuri, a college student, is saved by Ouya Toshiomi, the young leader of the Ouya group when she’s being forced into consuming illegal drugs at a party. Since then, even though she doesn’t want to get involved with the internal dealings of the Yakuza, she can’t help but fall for Toshiomi’s surprisingly gentle smile. This is the story of two people who are attracted to each other, but the courtship of a man who lives staking his life may be too fierce and crazy… “Yuri, it might be our last night, so let's get crazy together.” The most dangerous love ever, begins.