His Little Sweet Bun

The protagonist, Yunyun, is cheating on her ex-husband at university. After being introduced by her roommate, she meets and falls in love with a senior from the school. Nan Xuan turns out to be a "cat boyfriend". The two of them cheat on each other every day, which is very sweet. She is his source of sweetness, the clouds in the sky and his pride; he is her pride and her usual venting bag.