It is basically a story of two people. Xia Heng, who always has a lazy smile, becomes a roommate with the class beauty Leng Mei because he is late on the first day of school. One is as passionate as fire, the other is as cold as ice. They are two people with completely different personalities, but they happen to come together, so the story of the two people sings a harmonious song of victory amidst such contradictions.