[Apocalypse + No Female Lead + System + Anime Crossover + Laid-Back Daily Life]
On the first day of the apocalypse, college student Ye Chen was bound to a System and granted the ability to build a super electromagnetic cannon with his bare hands.
And so, one man's easygoing journey began.
(It's essentially a road movie. The protagonist will meet all kinds of people, then part ways with them.)
I'm no good at writing introductions, so feel free to head straight to the story.