Start with a Grass-Shaped Sword Technique

On January 1, 2019, a sudden rain of blood fell from the sky around the world. Then, humans began to go crazy, animals went crazy, humans became unconscious puppets, and Mercury humans were less than 10/1 The protagonist obtains the system in crisis and embarks on the road to become king. Ps: The introduction is weak, please read the main text, the protagonist of the dark flow, don't read the Holy Mother This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.