I Was Stuck in the Demon King’s Tiny Workshop So Long That I Became the Demon King

Yura woke in a demon king's body, with blood on her hands and a tiny workshop built into the throne room wall. She could not fight like a warrior, but she could build full working systems at bottle size, and that talent made her the only person who could repair the palace's hidden traps and crawlspaces. A worn notebook from Ren sat on her shelf, a small wooden box held her exit pass, and every glance at the mirror showed the face of whoever loved her most. That should have been comforting. It only made the court feel more dangerous, because someone in the palace wanted her old life erased and her new one owned.