Harem

Ally level 8,6,6,6! Enemy level 6,5,4…0?
    What the heck is 0?! Hahahaha!
    Laugh at me now, the level 0 will tear you apart later!
    The boy who goes against the world to protect his dreams. Cha Sung Jin, a professional gamer who had been accidentally summoned.
    The girl who protects the world whilst throwing away her dreams. Ereka, the princess of a tiny nation in this strange world who has fallen into danger.
    This is the story of these two people.