Games: Shiro, Rurio, and Kakisuke go to Hell's video arcade. Among other things, they find Rurio is a master of shooting games, Satan is visiting and playing a dating sim, and Hozuki is too good at Whack-A-Mole.
Mechanical Chief of Staff: Hozuki takes Lilith and Beelzebub on a visit to 6th King Henjo's mechanical/industrialized court. While there, they meet a robot that is being programmed to become his new chief-of staff - a cursed doll Lilith gave him.