Noro Girl!

A high school student named Nishiura Kenichi is asked to check on his absent classmate, Kurama Shion, who has missed school for two months. When he visits her home, Shion uses black magic to turn him into her personal slave. She intends to use him as a test subject for her powers. The story follows Shion, who is said to be destined for world domination, and her enslaved companion, Kenichi.