Mysterious Letter Side Story Full Walkthrough and Details | Where Winds Meet

There's definitely something mysterious about Aunt Han's room...

[1] Grab the Mysterious Letter

・Go to Blissful Retreat and enter Aunt Han's Room. Pick up the Mysterious Letter on a table.

[2] Give the Old Letter to Pei Mao

・Pei Mao is on the roof with a Cat. Hand over the Letter to him and complete this Quest.

・Echo Jade x 20
・Qinghe Exploration x 10
・Character EXP x 1500
・Coin x 1500