<p>A master assassin&#8217;s toughest job isn&#8217;t a kill order. It&#8217;s finding a wife. That premise carried &#8220;Marriagetoxin&#8221; from a running Shonen Jump+ series into one of the standout anime of Spring 2026, and creators Joumyaku and Yoda Mizuki are already looking toward a second sea</p>