Seiichi
誠一
เพศ: Male
One of three people living inside Guu's stomach world. Like Tomoyo, he is a friendly high school boy who doesn't seem to mind living inside of Guu. He is good friends with Tomoyo and is even possibly her boyfriend.
One of three people living inside Guu's stomach world. Like Tomoyo, he is a friendly high school boy who doesn't seem to mind living inside of Guu. He is good friends with Tomoyo and is even possibly her boyfriend.
