This Game We Call Life

My name is Jack, I am a martial artist who spent most of his life on a mountain. But for the past two years I have been at a public school. Why? So I can learn more about the life most people lead, and it is BORING. Luckily I have some other fun things to do for entertainment. Well, none of that matters now because….. I took elements from other series in this genera, like re:monster and change:new world, but the story itself is mine. suggestions are always welcome if anyone finds a grammatical mistake or a mistake with a table please point it out in the comments so i can fix it, thank you.