A character ref based on a design by  wheredeer.

CASS13-NO. 77 (AKA Cassie) was a robot created to serve as guard to a mint. She would swallow any intruders and hold them in her belly for detainment. Being around money all day made her crave it; eventually, Cassie would grow bored of her guard duty position, and leave to open a casino, which she called "The Lucky Luna". Staffed by drones created in Cassie's image, the casino offers unique takes on classic casino games, such as Bloatjack, Round Roulette, and Puffy Poker. Cassie is very money-minded, and is constantly running promotions to draw more customers into her casino.

Cassie works as manager, dealer, and showbot at the casino. Anybody who loses at her casino will be inflated to the point of immobility and taken by Cassie to serve as her personal balloon toy. After she's had her fun, Cassie will allow her victim to deflate and send them on their way. Sometimes, "lucky" losers will get to participate in her shows as balloons in front of a huge audience. If Cassie likes a particular customer, then she will rig the games to make them lose, so she can have them all to herself. "The house always wins," as they say...

Cassie modified her body into a gacha capsule machine, as a way to make even more money for herself. Each capsule in her belly contains random prizes, ranging from tissues, to coupons, to plushies, and everything in between. If she's feeling particularly greedy, then she will swallow her customers and stuff them inside gacha capsules. The only way to get them out is to keep giving her money until you get lucky. She may also inflate her victims before stuffing them in a capsule, making it a very tight fit...