Signed for Fifteen Years: One Person Conquers the World!

Traveling to a parallel world, Yu Nanxiu obtained the sign-in system. On the first day of signing in, there was nothing. The next day after signing in, nothing. After signing in silently for fifteen years... "Ding, congratulations to the host for reaching the peak of martial arts!" Then, the system disappears. Yu Nanxiu looked confused. This is the 21st century. Why on earth do you want me to practice martial arts? Until one day, at the World Fighting Conference. Facing foreigners who look down on Chinese martial arts. "Can you block this punch that took fifteen years of effort?!" Yu Nanxiu hooked his fingers, his eyes cold: "Come on, I can hit ten more!" The whole world is shocked! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.