Supreme Sign-In System

A complete reversal of fortunes: a poor boy becomes a live-in son-in-law and turns into a tycoon. For the sake of his seriously ill younger sister, Qin Ming becomes a live-in son-in-law. After enduring endless ridicule, he unexpectedly awakens the Supreme Tycoon Sign-In System. Ding! Host sign-in successful. Newcomer welcome gift acquired: 10 million RMB and basic combat skills. Ding! Host sign-in successful at a jewelry store. Acquired a diamond ring as large as a river stone. Ding! Host sign-in successful at a gym. Acquired the world's most perfect physique.