Starting Heirloom: All Upgrades Depend on Sucking!

Bite! Dear Wu Tian, ​​welcome to join the Foreign Spirit Bureau! What! ? Am I going to die? Wu Tian got his great-great-grandfather's heirloom - the Secret Ring and a mutilated ancient book. With the help of the treacherous ring, he accidentally joined the supernatural bureau. Completed the recovery of supernatural energy, and bizarre events occurred frequently. On the way to completing the mission and upgrade, more and more truths surfaced... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.