If you're looking for anime similar to Zhi Dou Wuya, you might like these titles.
A polar bear who is very bored with various marine animals in the deep blue sea. It continues an ancient tradition of "Caricatures of Frolicking animals" in scroll painting-style; this time, "Frolicking Sea Animals," in animation form, with a play on Japanese and English language word-plays: "Polar bear bears boredom," "Other otter, poor otter," etc.
A high-school girl came to an amusement park in the afternoon. She lost her bear key-holder when she changed key-holders. Misunderstanding to be abandoned, the bear tries to follow her. Can he really regain her love?