After his body changed, Ye Chen was assigned to the lowest-ranking bodyguard department to help him recover from his slump, where he ended up meeting a major client.
Department Head: Hello. We'd like to assign you a different bodyguard. Would that be all right?
Major Client: No.
Department Head: Why not?
Major Client: Does your company have any other bodyguards who are stunningly beautiful, dominant on the outside but submissive within, and exceptionally skilled?
Department Head: No...
Major Client: Then that's settled. No returns.
Department Head, thinking: What if I regret this...
Yuri + harem + transformation. The protagonist is dominant on the outside but submissive within. Light martial arts.