Saejima Elena, a beloved younger girlfriend who is two different places

He's two years apart from Elena, a high school girl I casually met. Why is this cute high school girl able to go to her home and have sex as much as she wants!? When she gets home from school, she immediately has creampie sex inside her in her uniform. Even after dinner, she twitches and squirts a lot! A mysterious record of everyday life with a super cute high school girl who goes along with her without saying anything!