The Useless Fox Became a Genius

I wake up with fur, sharp ears, and a death scene already waiting for my owner. Bai Bo is trapped inside the body of the heroine's supposed spirit beast, and he remembers every ugly choice that leads to the villainess's fall. He cannot talk, but he can react fast enough to steal keys, block hands, and trigger old arrays before anyone notices. That makes him useful. It also makes him dangerous to the people who want him tame. When the villainess chooses kindness instead of the script, Bai Bo starts helping her survive without ever telling anyone he is a man in a fox body. The one person who watches him too closely is the same enemy who keeps telling the truth no one else dares to say.