Sign-In Expert: My Sister Exposes My Secret

Xia Xiang had just started his freshman year of college when he accidentally obtained a sign-in System. After five years, he finally completed the sign-in mission.

But before he could enjoy the rewards, his younger sister exposed all his secrets during her first livestream!

From an ancient Egyptian mask to the Terracotta Army, and even mysterious scriptures!

Everyone was curious about what else was hidden in that basement.

Meanwhile, his sister could only wonder what Xia Xiang had been doing for those five years.

This novel and its characters are entirely fictional. Any similarities are purely coincidental. Do not imitate.