Shuten Doji - The Star Hand Kid

Ryuichiro Shiba, a writer and artist, is in a temple with his wife Kyoko to make a marriage vow to their ancestors. However, two oni suddenly materialize in front of them and begin fighting, one of them with a child on his mouth. The oni concedes the infant to Ryuichiro and Kyoko after defeating his adversary and promises to retrieve him in 15 years. After the predetermined amount of time, odd things start happening around Jiro Shutendo, the infant who is now a teenager.