Sakurano Yuki, a determined underground fighter supporting an orphanage, is recruited by the legendary martial artist King to join the Soul Fight agency. However, after losing a match to him, Yuki discovers that King's interest in her strength is predatory. Following a second defeat, King reveals his true goal of breeding a super-fighter and forces himself upon her, leaving Yuki devastated and fueled by a desire for revenge.
After being overpowered and forced into submission by the King, Yuki finds herself caught between her resentment and a growing attraction to her captor. As the King provides for her orphanage and trains her to be a stronger fighter, Yuki eventually embraces her role as his wife and mother. Through a cycle of intense battles and intimacy, she finds a strange fulfillment in her submission to the strong man she once admired.