"The Terrifying Dragon World!!" is the 40th episode of the Season 1 anime.
While inside Aibou Academy, Todoroki Genma invites Kemura. The person that was awaiting them, was really a member of Disaster, Magoroku Shidou. Shidou uses the not yet known world, ‘Darkness Dragon World’, he fearlessly laughs at the previously wounded Duel Sieger. That conclusion of surplus is…