Kuro Fukase Husbando

Kuro Fukase is the protagonist of ib: Instant Bullet series. Kuro is able to create a dark shadow creature, which at first is able to make anything it swallows disappear. He can only command this creature to destroy, and not do anything else. Thus, at first he assumed he is the ib of destruction. However, it is later revealed that he is actually the ib of creation, and that the "beast" is a creation of his. Toiro Fukase was also a creation of Kuro Fukase that had become a soul and acquired the power of the ib of Heroes. Because of this, Colorful had a plan to save humanity by killing all human beings and bringing them back as souls using Kuro's power, leading to the future seen by the witch where no humans were physically present, but were instead existing as souls. Kuro was also able to merge the "beast" with Toiro to create a "half-beast" with the mind, goals, and ib of Toiro but with the raw power of the "beast".