He needs a clean bed partner and a shield to deal with his parents, and she urgently needs a backstage that can keep her safe. In this marriage where each gets what he wants, when the deadline for the transaction comes, they should part ways and be happy, but they are entangled in a deep affection that they shouldn't have. One day, he said with a frustrated look on his face: "Su Manxi, can you be a little more careful about our marriage? You lose your wedding ring every three to five days. Don't you know that you can't buy a wedding ring again?" She felt a little guilty after being stared at by him, but she still bravely argued: "I am born with a bad memory, and it is inconvenient to wear the ring. Sometimes I take it off. It's normal to forget to put it on." Hearing this, he narrowed his eyes and leaned towards her slowly: "It means that sooner or later, your memory will forget me, right!" "This will definitely not happen!" She quickly denied it, then put her arms around his neck and smiled sweetly, "In fact, you have already lived in my heart."