Realm of Extreme Chaos

I was just an unknown high school student with a dark and introverted personality. I lived a life of loneliness day after day, and then I was broken like this. What broke my life were monsters, all kinds of monsters. I don't know where the monsters came from. Maybe I should find the reason, but what's the point? It's better to save my life and enjoy the last happiness as much as possible before I die. What is happiness? Happiness is pain… This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.