Male Supporting Survival Story

Shen Yunfei has been unlucky for eighteen years, and accidentally learns that he is actually the cannon fodder male supporting character in a novel, specially used to support the male and female protagonists. Shen Yunfei said: What the hell is this! But a system appeared out of nowhere, saying that as long as she was bound to him, she could get rid of this unlucky physique and change her destiny. Shen Yunfei was happy, is there such a good thing?