An "alternate world (isekai) school gag" manga. The manga follows Yamada, a company employee who is around 30, and a young demon king. [NN]

Ms. Mitsuya is one of the few long-lived demi-humans in Japan. She is not very familiar with modern life, so in order to relearn, she... more>> became a high school student at the age of 200 (approximately)! With her race's unique beautiful appearance and her warm and soothing personality, she grabs everyone's hearts in this high school comedy! <<less