Delicious Proposal(2001)

Original title: 맛있는 청혼

Hyo Dong, the son of a struggling Chinese restaurant owner, falls in love with Hee Ae, who, unbeknownst to Hyo Dong, is the daughter of a ruthless rival who is out to destroy his father's restaurant. Hyo Dong and Hee Ae are in the same cooking class as Shin Ae, a poor girl who dreams of owning a successful restaurant despite having a tough life.