I'm a 28-year-old internet streamer. It may sound strange to say it myself, but I'm a siscon older brother who loves younger sister-type girls. One day, I came across a flyer for "Imoto Catering" and, out of curiosity, signed up. A few days later, an incredibly cute, idol-like younger sister showed up to my house. I ate cake with this adorable younger sister, played games, and even got to try her special hamburger steak...