Omake Gif Anime - Kakegurui XX - Episode 9 - Kiriari Snaps

Kirari has a special key card to get into this high-tech tower, but I don't think the lights operate on a modified "clapper."

Sayaka saw one last chance to stop Yumeko from messing with Kirari's election votes by challenging her to her own gambling match. Yumeko refused, at first, because she didn't see anything interesting about Sayaka's stakes. Kirari changed her mind, though.

The gambling school has some kind of escape room in the middle of a lily field for a specialized game, which is very appropriate considering the yuri attachments of the players involved and the prize for winning.