Is He a Nerd? the Great Sages of the Demon Clan Were All Killed and Stunned.

The vitality is revived and all things evolve! The demons are approaching step by step, and the human race is giving way! The demons are kings and saints, and the human race is in a corner! Demons feed on human beings and keep them in captivity. This is a troubled time, but also an era of heroes! The protagonist Wu Xiuyuan is a soul from the Blue Star special forces. How can the blood in one's bones tolerate the oppression of demons? Although my talent is to fight the fifth scum, as a time traveler, the system is standard! Reading, collecting monsters, flirting with various saints, and slapping saints in the face, it's such a comfortable day!