It's hard for me to rate this drama because it's pure fluff without plot. Literally nothing happens. There's no conflict and no problem that can't be solved in 20 minutes. The opening credits give away the entire story. This is the kind of show where the female lead lives in a crowded dorm room and yet somehow has a different brand new coat to wear every day. But the drama hooked me anyway because it's absolutely adorable and it gave me 12 hours of escape from the cold cruel world which I really needed.

The main couple is the living embodiment of the sunshine/sunshine protector meme. Su Zaizai falls in love at first sight with Zhang Lu Rang and showers him with warm positivity through the whole show (she also looks like a living doll). Rang Rang starts out expressionless and monosyllabic because of the pressure he gets from his mother to be a school topper, but as he spends more and more time with Zaizai he gradually thaws out and one of the best parts of the show is watching him blossom into a warmer and happier person. He also has two dimples which makes it even better when he flashes one of his rare smiles.

The rest of the characters in the friendship group are very cute but underdeveloped. I would have liked to have spent more time on the second lead romance.