Tongtian Sword Tomb: the Demon in My Sword Upgrades Very Quickly!

Starting one day 18 years ago, Every child born in the world has a sword in his mouth. The swords used by children are only about one inch, delicate and cute, and are called sword fetuses. It will also grow with its owner. Moreover, Ever since the first child with a sword appeared. The same sentence appeared in front of everyone in the world: From now on, every child with a sword who is over 18 years old will enter the Tongtian Sword Tomb at the same time and activate the original sword gift. The orphan Su Xiaojian is one of the children born with a sword. But he's a little different, There's a goblin living in his sword! Was he fined to stay at the sword tomb for a month due to illegal operations at the beginning? Only 20% experience left? It doesn't matter! "Is he really only level 1?!" "Then... Is that sword energy?" "One move... Just one move and it's all gone in seconds?!" "One sword hides everything?! How to do it?!" "Everyone was born with a sword, why is his sword so powerful?!" No matter if you are in front of a ferocious beast, a villain, or an evil god... Just cut it! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.