Also known as: ゲイツ(西方Project)
Gates (ゲイツ Geitsu) is a hot-blooded 45-year-old military commanding officer. He's currently in charge of keeping an eye on Erich's private army on behalf of the Earth's military, but he sometimes works on Erich's behalf. He has showed up in all three Seihou Project games.
https://en.touhouwiki.net/wiki/Gates