The filling for this mooncake is the traditional five-nut variety. Lin Yuan took a taste, quite fresh, but the flavor, well, it wasn't as good as the one she made herself. Therefore, she added some sugar, oil, and roasted sesame seeds to it. Only then did the five-nut filling become perfect. Naturally, she bought the sesame from Sister Gui Zhi who, although reluctant to accept money, was finally persuaded by Lin Yuan's methods to take it.