Poposu-kun no Koto (E74)

Bonobono passes a rabbit with a large head on the road. "I think I’ve seen that rabbit before... Where did I see him?" It keeps bugging Bonobono, so he follows the rabbit. The rabbit's name is Poposu. He says he does not know Bonobono. Where did Bonobono see Poposu? (Crunchyroll)