Walking by the Abyss on Thin Ice - Chapter 304

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

In an era when the power of Fire Magic was considered to have reached its limit, one girl began researching nuclear fusion.

I was reincarnated in a game-like otherworld.[ Warning! When acquiring an active skill, all stats will decrease by 80% for each active skill! ]...What the hell.