You know, I never actually believed that the possibility of being Isekai'd was real, but damn was I wrong. I ended up in Rising of the Shield Hero ten years before the start of the anime finding myself in the position of Vassal Hero of the Dagger. And after letting myself get captured by bandits who planned to sell me into slavery, I also became the bodyguard of Malty S Melromarc.

Rose Euphemia Potter, the Girl-Who-Lived, has a brother in Slytherin that is two years her senior. This is their story at Hogwarts.