A story about a kind-hearted woman with multiple personalities and her partner who stays by her side. Hai Can is the president of an entertainment company who returns from abroad and inadvertently encounters Yu Tong. She is a school teacher and the scar on her hand reveals that she is his childhood playmate that he has been looking for all these years. As Hai Can tries to get close to her, he discovers that she has two other personalities - one is an expert martial artist named Ah Jian and the other is a beautiful woman named Kaili. They start getting close to each other but things are made complicated because of Hai Can's ex-girlfriend, not to mention the heroine's other identities threatening to take over.