Touya returns home during summer vacation to find 4 older women (Rio, Nagisa, Amane and Sara) awaiting him. They have been hired as live-in home tutors for Touya. However, his lessons are not limited to book-learning...
Watch Kateikyoushi no Onee-san THE ANIMATION: H no Hensachi Agechaimasu (家庭教師のおねえさん THE ANIMATION～Hの偏差値あげちゃいます～) on oppai.stream for free!