An average run-of-the-mill male finds himself in an unfamiliar world. He's been tasked with defeating the Demon King, but first must defeat the Generals that uphold the barrier to his castle. Will this new adventurer prevail or will he fall to the burdens that wait him?

(Y/N) is a 17 yr old boy who's accidentally mutated with the power of electricity. (Y/N) was in a world full of infected (from Prototype), making him the only survivor, and who is on the hunt to kill the man who made him this way, Alex Mercer. Then all of a sudden (Y/N) found a portal where Alex Mercer made, then transported him in a world of Remnant. What will happen next?

Y/N L/N died in a Tragic death and was send into a another Fantasy World to defeat the almightly Demon King! On his path he meets new friends that follow his journey. To find out, they are'nt what he expected to be?

#1 in #swordartonline 10/04/18 Year 2023. The world has been waiting in anticipation for the long awaited Full-Dive VR system called the NerveGear. The NerveGear was designed to fully immerse the user in an open and dynamic world being able to take in everything with all five senses. To test this, is a VRMMORPG named Sword Art Online. This is where his story begins.

It's Kimetsu no Yaiba X Male Reader. Pretty straight forward. Male X Female.

(THIS STORY IS DUE FOR A COMPLETE REWRITE. A MORE FITTING PLOT, MC, & SETTING ARE IN THE WORKS.) The name "Nightstalker" is in reference to an O.C. of mine. You (the reader) borrow the mantle and fill that role for the sake of the story and setting. This story was written for fun, and in my free time. I do not claim ownership of any of the art presented in this story. All rights go to their respective owners.