I, the Demon-Sealing Master, Start by Sealing the Black Dragon as a Big Demon.

All things accept spirits and become monsters, and when they are recognized by heaven, they become monsters. But in addition to some naturally noble holy beasts and immortals, how many spirits and monsters have survived the catastrophe of heaven and earth and become monsters recognized by heaven? Until the Demon Sealer, who had disappeared for tens of thousands of years, reappeared... Ye Xuan, who runs a flower, bird, fish and insect shop, accidentally awakens the demon-sealing system. For every demon sealed, Ye Xuan can obtain a magical talent. There are nine levels of sealed demons: heavenly demon, holy demon, great demon, great demon, mysterious demon, true demon, spiritual demon, bright demon and mortal demon. Animals, fish, insects, sneaks, wood and rocks, no matter what they are, anyone who can absorb spiritual energy can become a demon when meeting Ye Xuan. When the black dragon encounters heavenly punishment, he will transform you, a great demon, into a real dragon. A good man dies in vain, so I will make you a mysterious demon and become a ghost cultivator. Huanghuang has not yet reached nirvana. I will make you a holy demon to be my wife. Someone is encircling me and sealing me as a heavenly demon. Who dares to offend me? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.