Tippy

The cafe mascot for Rabbit House. Tippy is a female angora rabbit, who likes to rest on people's heads.

In reality, Tippy is Takahiro's father, and Chino's grandfather.

In season 1 episode 6 after the end credits it is heavily hinted that he was turned into a rabbit when "his cafe was suffering from financial difficulty, he complained he'd rather be a rabbit".