Makino Yayoi is a 16-year-old high-school girl. She made a promise with her mother that she wouldn't have sex until she turned 20 years old! However she believes that promise to be in danger! She mistakenly ...

High School student Usami Touru bumped into his classmate Ayabe Reri, one day while taking a stroll. Ayabe is like an idol in their School. She is a usually a quiet and honest beautiful teenage girl. But by ...

One day, while Shirou was delivering a secret weapon to his colleague, he met Amane Mao, a super strong girl who is capable of lifting cars. Suddenly, an ERROR, a monster that struck Old Tokyo 14 years ago, ...