While others are trying to control the mana within them, Vi, on the other hand, is controlling the huge pool of mana in the world he is in. As a level 1 player who can't level up, he resorts to other methods to become the strongest. Can't tame monsters and summon spiritual beings? No problem, he can use his own blood to create summons. Can't wield weapons made by metals and renowned blacksmiths? No problem, he can use his own bones as his weapons. Can't use elemental powers through mana? No problem, he can use his own shadow to cast magic. Can't execute enough physical power with his level 1 body? No problem, he can transform and bring out unparalleled strength. Can't use illusions and other mental attacks? No problem, he can do all of it with his hair. And thus, Vi becomes a king different from everyone. A king who without an army or kingdom, but a king who alone defeated everyone obstructing his path.
This story is good but what kind of player he is if he didn't even farm/grind. It takes him 400 chapters to level up to 30. All powerful was emerging one by one and he didn't even grind exp to level up. WHAT THE FVCK IS THAT?!! A player who didn't know how to grind. Don't tell me he is a guild leader with a low level.