Eito Arakawa (Haruma Miura) is an attractive man who graduated from a prestigious university and currently works at a bank. Despite being successful and good-looking, he's still a virgin at the age of 30. However, Eito's story is not unique in a time where the nation's birthrate is drastically declining. Luckily the government has a perfect solution - an adult high school for singles to meet! How will Eito's life change after receiving an entrance letter to this Adult High School? "Adult High School" is a 2017 Japanese Drama.