Sign-In Begins with Armor Warrior

The top killer of the 21st century, Leng Quan, died unexpectedly and obtained a mysterious system. His soul traveled through time to another world. A killer can set off a storm in the sky or become a small drop of rain. The beginning of Armored Warrior, one volume, one world, each volume will not be less than 100 chapters, this is my first time writing, if you have any suggestions, please put them forward. (Involving the world of animation, movies, TV series, and novels)