this reminds me of the taiwanese drama It Started With A Kiss! Love that one more than the kdrama interpretation. If you don't know it, Yuan Xiang Qin(d student) has a school girl crush on Jiang Zhi Shu (A++++ student), who is the cuteset boy in school. Disaster befalls Xiang Qin and she move in with Jiang and his family. Xiang Qin is horrible at cooking and is always getting Jiang Zhi Shu to cook for her. They end up falling in love despite their many differences and get married. Its sappy and sweet. Your pic isn't sappy but its sweet.