Sosuke Aizen is the main antagonist of Bleach, the manga by Tite Kubo that began in 2001 and was adapted into an anime in 2004. A former captain in the Soul Society, Aizen is famous for betrayals revealed long after he planned them. Clips of his Japanese dialogue circulate on soundboards and in edits alongside other villain lines like Za Warudo, because a single calm word can signal total control. Fans keep using yokoso for entrances, reveals and jokes about everything going exactly to plan.