Mars

Qiluo, a shy artistic girl happens to meet Ling, a notorious playboy motorcycle racer at a park. He asks for directions to a hospital, which she reluctantly draws him a map, gives it to him then hurries away

Ling gives back the mother drawing picture to Qiluo and she decides to give the finished painting to him after it's done. Ling is excited and says in exchange, he'll offer his protection to her whenever she needed i