Manga Like Neko ni Wagamama

A love comedy about a high school girl, Rin, who loves cats but has an allergy to them, and a high school boy, Tachibana, who turns into a cat at night. Rin has always been known to be caring, and one day she finds a weak cat at the shrine where she visits to admire them. For some reason, she does not develop an allergy to the cat, so she decides to protect it at her home. Rin is savoring the bliss of being able to experience the cuteness of the cat up close, but when the morning comes, the cat turns into Tachibana, a classmate of the company president's son who is always unsociable... (Source: Natalie, translated)