The Twelve Kizuki is an organization of the twelve most powerful demons in existence who are under the direct command of the Demon King, Muzan Kibutsuji.

The Twelve Kizuki are divided into two groups, the six Upper Ranks—and the six Lower Ranks. However, many moons passed throughout the years of the lower ranks have been killed off and replaced multiple times. Throughout one husband years, not a single Upper Ranks was slayed by a Demon Slayer.

The single note of a biwa was heard by Upper Rank Three’s high senses. Before he could blink, he found himself inside the alternate dimension—The Infinity Castle. He knew this place well. Recognizing it immediately upon seeing the very light.

~

The strong demon stood in one of the many—many hallways. ”The fact that I was summoned here could only mean one thing.” Akaza thought to himself, his eyes slightly widening upon the realization. “Someone managed to kill an Upper Ranks.” He felt his veins pop out beneath his cold skin. Feeling rage building within at the thought alone. But he knew he needed to control himself.