I Go on a Journey (E75)

There is a strange-shaped cloud floating over the other side of a mountain. Bonobono tells his father he wonders what is under the cloud, and his father tells him to go and see. Bonobono then sets off on his first journey by himself. He is nervous at first, but then starts to enjoy it. Then, in a grassy field, he turns around to find... (Crunchyroll)