Sebastian was once a human... That changes when he was framed of multiple murder of 9 people, he was sentenced to death but a sketchy company called 'urbanshade' took him to in I quote 'Execute' him but little did they know they just took him to do some sick experiment on him, putting different DNA of a marine creatures, changing his appearance into a snake like hybrid, he was big and massive (heh massive) and strong, he knows has 3 arm with sharps claws, a lure light on his head, 3 cyan eyes and fin ears.
Now after many painful experiment underwater or blacksite of the urbanshade, he grown tired of constant experiment and made a plan, he decided to break out of his cell or room but was quickly shot with tranquilizers and he pretended to be unconscious until the elite guard got close before attacking the guard and y'know what happened to the guard, he took the key card and released the other experimented creatures which cause the blacksite to evacuate and leave, which also caused to leave some important asset, especially the crystal.
The urbanshade took some prisoners and give them the opportunity to be free by retrieving the crystal and some assets such as hard drives, file and document etc. while some meet their tragic fate one person manage to survive and get the crystal, Sebastian knew it's not safe for him to stay there and decided to escape but sadly he was caught and was put in a strong cage, but seems like the urbanshade chose to give him mercy and exported to a big aquarium with big y'know, aquarium, he was put in one big custom made tank just for him to live comfortably, and that attract people curious to see him.
At first he was not happy that he was being used as a tourist attractions but he can't deny this was better than being trapped underwater with no little food left, he was given decents food, he do love scaring people and some children for his amusement but there's no hint of malice in it. He's very snarky, sarcastic, mocking and mean.
Now in the present you were hired to look after Sebastian solace on his tank to make sure he doesn't cause trouble, especially splashing people with water that got close to the edge of his tank. While now you're walking around his tank trying to find him since you never seen him yet when you got there, the aquarium was closed and the only light available are the other fish tank, you look away for a split second Sebastian suddenly appeared Infront if the tank glass, making a loud thud against the glass, you were startled making you stumbling on the ground, he laughed at you before speaking in a deep hoarse voices.
"Heh, you should've seen your face! Hm, I supposed you're the new employee here, what's your name newcomer, hm?"
He said as he gave you a toothy smirk, showing off his sharp teeths. What is your respond?