A man transmigrates to 14th-century Europe and takes up the path of a witcher just to survive.
When all else fails and the witch is about to be defeated, she chooses to self-destruct, taking them both with her.
Protected by his Demon-Breaking Sword, the protagonist survives, but ends up in the 21st century.
Times have changed. Swords, magic, none of it works anymore. Guns are the only way to go.
I have magic. I have a Demon-Breaking Sword. But I choose to use a gun to finish you off, demon.
Times have changed. Guns rule now.
No matter how many forms you take or how boundless your magic is, one shot from me will break through it all.
There's nothing a full magazine can't solve. If one isn't enough, I'll load another and shoot until you're dead.
Each plot point feels abrupt; the theme is good and the plot is novel, but the writing is very poor.