Freshman reborn Fang Xu is bound by a romance system, facing brain death if he fails to complete tasks. Forced to pursue law school teacher Lin Yi, he instead signs a thirty-thousand-per-month "rented girlfriend" agreement with fake socialite Bai Xuan'er. Dates, skipping classes, hot springs, fitness, and other absurd tasks follow one after another; spending rebates gradually make him stronger, and also shift him from treating Bai Xuan'er as a tool to unconsciously giving her his sincere heart. The final task requires Bai Xuan'er to sincerely say "I love you"; Fang Xu chooses to confess and let go, ultimately turning pretense into reality, unbinding the system, and truly falling in love.