Savior of Divine Blood ~Draw Out 0.00000001% To Become the Strongest~

Synopsis

Bullied teenager Ariake Subaru is unexpectedly chosen as a player with the rare Rainbow rank, placing him outside the familiar gold, silver, and copper hierarchy. Granted the ability to control blood, he enters a dangerous struggle against creatures from another world. As Subaru learns to use his power, he must fight to survive while pursuing the possibility of becoming the world's savior.