Read Help, My Boyfriend Is A Ghost! Manga:
A car accident made Fang Yin Yin into a cat. As well as being a full-time nurse for three kittens, she also has to deal with an overbearing president. "From today on, you're my cat, remember this in your head." "You damn stray cat, so ugly and yet you're still trying to entice me." "It's so troublesome being so dazzling all the time. Being my cat, you also feel tired, right?"