It seems when Dian Keto was a lot younger, she was a corrections officer?
RD/WJMP-JP002 監獄の神 ディアン・ケト Kankoku no Kami Dian Keto (Dian Keto the Prison Master)
Level 8 DARK Aqua-Type Effect Monster
[Requirement] You can activate by sending 1 card from the hand to the Graveyard.
[Effect] Look at your opponent’s hand and choose to send 1 card among them to the Graveyard. If you send a monster (Level 7 or higher) to the Graveyard with this effect, you gain 1000 LP.
This card will be available in the physical issue of Weekly Shonen Jump on sale March 29th, 2021.