In her previous life, Mu Yuwen was extremely smart, beautiful and proficient in all kinds of martial arts. It was because of this that her family was incomplete. She kept her warm heart and replaced it with a cold heart. Unexpectedly, she wore it. She even wore it in Ranma's world. The younger sister who was born one minute later than Akane actually arranged a baby kiss with Ranma without her consent. Let's see how Ranma can exchange this warm heart back.