Каяма Юджі

Yuji Kayama was an anime-only character who appeared in the Stars season. He was the captain of the American-style football team at Juuban Municipal High School, and was considered to have a bright future in the world of sports. After practice one afternoon, Chuuko Nezu met up with him and tried to ask for an interview. When he refused, claiming that he was busy, she revealed herself to be Sailor Iron Mouse and removed his Star Seed. When it turned out to be a blank, he transformed into the Phage Sailor Guts. Usagi had been nearby when he was attacked, and she transformed into Eternal Sailor Moon. After a brief battle with the Phage, she turned him back to normal with Starlight Honeymoon Therapy Kiss.

(Source: Project WikiMoon)