Su Wanwan, a veteran of the transmigration bureau, is given a new script: save and win over Fu Chenzhou, the future demon lord who will destroy the world. Faced with the System’s sweet-romance options, she pulls out a ledger instead. “Sign an IOU first. Interest is due daily.” Everyone thinks she’s doomed, until the cold-blooded demon lord pins her in a corner, his eyes red. “I’ll repay my debt, in this life and the next, to you and you alone.”
