The Ultraman: S1 E18 - The Mysterious Monster Island The Ultraman

A sea serpent emerges at South Uki Island, the hometown of Yuriko, who works in a coffee shop on the Earth Self-Defense Force Far East Zone Base. Yuriko, who lies and tells her father living in her hometown that she has joined the Science Guard Party, goes to South Uki Island instead of Mutsumi, along with Hikari, Tobe, and Marume.