C120 Revenge of Someone From the Past

When I opened my eyes, the bright light hit my eyes, and I spontaneously squinted because it was too glaring. I slowly tried to familiarize my eyesight with the morning to see usually. I looked around. Where was I?

At first glance, I was in a room because there was a bed here. It's just that this room is so unfamiliar. I've never been to this room before. So