He Dai once saved a person. This man later came to repay the favor and invested money in He Dai's filming. Then, He Dai was reborn. The reborn He Dai saw someone in danger, and out of repayment, he helped someone again. Xu Kuan, who had been helped, wanted to repay his kindness, and over time they became friends, brothers, and... Lovers. It seems that the only way to repay the kindness is to give oneself. In short, this is a story about repaying gratitude.