Lin Kai Tuo

Lin Kai Tuo always thought his father was a hero, and never thought that he was the reason why their family broke up. After divorcing his father, his mother remarries his best friend's Liang You Nian's father, which made the two's relationship bad

He acts rebellious and rude towards their parents but in reality, he's just being a kid and getting mad. To beat Liang You Nian he took a major effort in improving his studies and worked hard to make money outside so he never had to ask his parents for money. After going to University he tries his best to get scholarships and rewards to pay for his tuition.

He was Xia Miao Miao's desk mate in high school and had a crush on her. He confessed to her but got rejected, and finally gave up because he found out that Liang You Nian liked her too. After He Xin confessed and got rejected many times, she stopped chasing him and that was when he realized he had always liked her and chased her back.

(Source: Wikipedia, xue er at mydramalist)