"You still owe your master a satisfying cake, what, thinking of reneging on the debt?" Old Man Wuwei feigned anger with furrowed brows.
The satisfying cake was a new pastry she had been working on at the time; she intended to make it first for her master to try. Unbeknownst to her, before she could perfect the pastry, her master suddenly left. She promised that the next time she saw him, she would definitely make it for him to taste.
She soon succeeded in creating the pastry but did not release it to the public market. That was her filial piety and promise to her master; she did not want strangers to taste it first.
Only the master and she knew about this.