Skipping Class, Picking Fights, and Entering Dungeons

Have you ever doubted whether the world is real? Have you ever wondered why fate brings so many trials? Why does the universe visit such hardships upon us? Could it be that all those instances are merely a “training ground” for our main universe? Main Universe: If I don't give you hardships, how will you grow? How will you become stronger? How will you... devour other universes?