Merciless Rules/The Cruel Rule of Yosen Shuka! - S1.E4

Sanche, also a young chef in Yang's Spring Restraunt, becomes jealous of Mao's talent and tries to spoil Mao's cooking. However when Sanche is asked by Choyu to chop some vegetables, he is unable to chop them finely (due to a tragic childhood where he was taught to cook by his strict father) and so all the customers become unhappy about the restraunt's cooking. Choyu kicks Sanche out of the restraunt for his poor cooking ability. Sanche runs away and tries to get on a boat to return to Shanghai. Mao stops him and offers to help him in showing his skills to Choyu so he can be cook for the restraunt.