In 2018 a young boy named 21 Emon dreams of becoming a space pilot and exploring space in general. He is the heir to a long line of hotel owners, which dates back to the founder of during the Tokugawa shogunate. Since the Earth has become a planet visited by tourists from all over the space, 21 Emon has to help out his family's business or they'll go bankrupt.

Urobe was a son of the great chief of Pyrimi, Africa. One day he hung on an airplane and came to Japan. Because of the cold and hunger, he fell on to the yard of Shishio’s house, and Shishio nursed him. Kurobe was very thankful for him and began to repay for his kindness. Kurobe dug a big hole in the yard.Every time he returns the favor, he threw a stone into the hole until stones would fill the hole. (Source: ANN)

A group of 5 male high school students that call themselves the funny-face group cause trouble at school with their crazy antics. (Source: AniDB)

The main character is a scientific genius boy named Kiteretsu, who has built a companion robot named Korosuke. He frequently travels in time with his friends and Korosuke in the time machine he built. Miyoko is a girl in his neighborhood who is basically his girlfriend. Tongari is his rival, who happen to share some similar traits of Honekawa Suneo. Buta Gorilla (Kumada Kaoru) is a typical neighborhood bully, who also share similar traits of Gian (Takeshi Goda) except that he often antagonizes Korosuke (though they are in grade school). (Source: Wikipedia)