Linyuan mission. In the game "Sword Hero", OY is the Linyuan mission. The Linyuan mission is triggered after a conversation with Chu Tiandu martial artist. This mission has two modes, namely treasure hunting and challenge. The mission modes will be randomly matched. Among them, LL is the first spell representing the "experience" of the first mode. Generally, the first mode is called in transactions. If it is the latter two modes, just call it treasure hunting or challenge.