In the oriental fantasy continent that is shrouded in "fog" all year round, there is a legend of "twin contracts" - if two people wear complementary ancient patterns (such as one person embroidering the "fog-suppressing pattern" on their clothing, and the other person embroidering the "light-guiding pattern"), after signing the contract, they can dispel the disaster at the core of the fog, but they will also share the bond of life, and both will suffer. Xie Lin is an "ordinary person" who stumbles into the fog town in search of his teacher. He can use the fog-suppressing pattern as a blade to kill shadow beasts and keep peace; Shen Yan is an orphan of the Yingguang tribe. He came into the world with the light-inducing pattern, but is regarded as an alien by his tribe. When two people who are destined to meet each other meet, is it salvation from a desperate situation, or is it a curse to perish together? Strong/dual perspective/other world fantasy/metaphysical thriller/two-way redemption
Intention: The twin contract is not a bondage, but a proof that two people choose to face their destiny together.