Two Years into Our Contract Relationship, I Can't Let Go

[Two male leads + older man/younger man + bittersweet undertones + 1v1 + happy ending] [Elegant, shrewd CEO top and sharp-tongued, soft-hearted doctor bottom] Gu Zhixing had always played by the rules. In his life, he had done only two rebellious things: First, he fell for someone he shouldn't have. Second, on his twentieth birthday, he stole a kiss from that person. But he prided himself on his restraint. Apart from that one time, he had never crossed the line in all these years. One day, he accidentally discovered that he might be an orphan. Gu Zhixing should have been devastated, yet a thought he had never dared to entertain quietly took root in his heart. Still, he lacked the courage to act on it. Then he saw Gu Zhile dancing wildly at a bar, and the tension he had been holding inside finally snapped. So he made his move: confessing in the bathroom, faking a car accident, accidentally letting his guard down. Gu Zhixing would do whatever it took to secure their future happiness. At last, under his relentless pursuit, Gu Zhile couldn't help falling for him. Later, he found a stack of long-forgotten love letters in Gu Zhile's room. Their yellowed pages brought to light an old incident. But he never expected Gu Zhile to react so strongly. It even came to a breakup, with Gu Zhile swearing never to see him again. After finally winning their parents' approval and confessing their feelings to each other, Gu Zhixing refused to accept the breakup. This time, though, he gave Gu Zhile all the time and reassurance he needed. He only remembered that on the day the whole truth came out, Gu Zhile clung to him, choking back sobs as he apologized again and again. Gu Zhixing answered, as he always had: "I love you." * No matter who we are, I will love you forever.