In my first year of retaking entrance exams, I decided to stay with my aunt Aika so that I could attend a prep school in Tokyo. However, to be honest, I don't really like Aika. She spends her time carefree and neglects her household chores, with her glamorous social media and live streams. What's more, she treats me like a failed virgin. I was so angry that I started following her to find out her weakness. Then one day, I saw her disappear into a hotel with a man. Seeing her, I put a certain plan into action...