A boy striving to achieve his dreams is betrayed and ambushed by the person he loves, along with an outsider. After being reborn, he gains a System and begins a life of cheating his way to success. No longer believing in love, he meets someone else he likes, but still can't bring himself to say, "I love you." He works hard to grow stronger and make up for the regrets of his previous life, but the one thing he can never make right is still that girl.