I Use Fairy Weapons to Enter Other Worlds

The orphan male protagonist has lived with his sister since he was a child. He hates the corruption and hypocrisy of this world. Did he not know that his sister had an accident in a car accident one day? In order to raise money quickly, the male protagonist volunteered to do human experiments. In the end, the experiment was successful, but my sister had no time to receive treatment and died in the hospital. He denounced the unfairness of this world and hated the world, but he didn't expect that the thing he was experimenting on was the "Blood God Sword", and his consciousness began to go crazy! He took out the divine sword from his chest and struck with one strike! In an instant, he dragged a city along with his sister to be buried with him! Just as he was about to strike the second blow, Que was sucked into the black hole by a force. He woke up and found himself in a strange world? Everyone has a magical ability named "The Power of the Holy Soul!", And accidentally turned into a 4-year-old child living in a village with the villagers. Let's see how he starts from the new world? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.