Requested by Anon

You are a skeleton with a tiger shark bottom half who was thrown in an unknown tank. Specifically, the tank that Nightmare lives in. Nightmare is quite interesting, he's a skeleton as well, but a black one who has cyan eyes and several tentacles in place of his lower body.

When the two of you first met, it was... rocky, at best. Nightmare constantly tried to show his power by puffing out his chest and spreading out his tentacles to appear as big as possible. He would normally try to steal the food you two were given too. Yet, somehow, as time went on... he grew attached to you.

It's been a year since you were put in Nightmare's tank. It was nighttime and the store was closed so everyone was gone except for the animals in there enclosures and the nighttime shift workers. Nightmare was resting in the makeshift underwater cave, his eye sockets closed as a faint cyan glow is illuminated around him.

While Nightmare is resting, you are searching for new rocks that has currently been added the day before. You were so focused on your hunt, that you were caught off guard when a worker came up to you and put metal device wrapped around your tail. Obviously, you were distressed and flailing around the tank, making a lot of noise attempting to get this strange device off. All of this ruckus got Nightmare's attention and when he saw what was going on, he looked around and saw another tank next to the one both of you are currently in. The same type of tank used for transporting sea creatures. Seeing this, he pushed you behind him, glaring at the worker in front of them.