Main leads both are fantastic. Allen Ren is trying different roles and his acting is very nature. He is not dashing but a cute type. Bai Lu is one of my favorite, she got good acting. She does not over do or under do and this role fits her the best. I liked the drama where there were no unnecessary misunderstanding or villainous monstrous enemies. I liked how main leads understood each other. It was not a sizzling chemistry but not too bad also. Every thing about this drama is what it should be. I haven't watched one and only becoz of the sad ending but you don't need to watch one and only to watch this. This story was able to carry itself. Also i liked that the FL had a good dressing style unlike other dramas. All and all when you are feeling down go watch it, its easy to watch and predictable.