During the miniquest Spiritual Enlightenment, the Death Lotus exile, Ling, tasks the player with locating him. During the conversation, she mentions that they both trained at the same camp of assassins, prior to his extradition.
He can be found in the Spirit Realm of Aminishi, on the same tile as Ling. The player may choose either to tell Ling about his location, or bluff and keep his location secret. Afterwards, Ling states she did not wish to assassinate him, but catch up as they were childhood friends. She describes him as oafish.
Yulong also plays a role in Tuai Leit's Own where he consults the player in a possible spiritual cure for Ekahi's affliction, and channels the player's 30 positive energies into the player in such a way that the player can infuse the energy into Ekahi. This ultimately fails as it does not cure Ekahi.