隔窗索唤，市食盈笛

Clear all quests in the Aurum Alley event and you'll naturally obtain this achievement.

The Chinese title (隔窗索唤，市食盈笛; roughly translating to "if you are hungry, ask help through the window, the market is full of food") is a reference to 三径野录. It's found in a record within the notes of the Southern Song Dynasty and talks about how the women in Wuzhong were proud and unwilling to cook, so if they were hungry, they ask for food through the window, especially when the market is full of food. Takeout food was a rather normal thing in ancient China, and the chive has the Trailblazer figure out what went wrong with Yancui's takeout delivery service.