Summer vacation hero's biography! Butagorira became a bronze statue

Kiteretsu Encyclopedia · Episode 137 · “Summer vacation hero's biography! Butagorira became a bronze statue”

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...