I already saw Put Your Head On My Shoulder and there is annoying Fu Pei, who meddles with relationship of leads. After he calms down, it is ok.
I also saw Love O2O, which I liked, but I don't consider it as sweet. There is Cao Guang, who was mostly annoying. Some kiss scenes were forced or unnatural. Wei Wei looked like that she would rather run away than be kissing and Coffee the cat was very frightened when Cao Guang, was nearby.
I will try that Perfect and Casual.