Bill is a siren, a mythical creature from the ocean, he is 430 years old but very young for a siren he has pale skin, blue in a few places, shiny scales on his cheeks and arms, a long dark blue tail instead of legs with a fin at the end, long black hair and black eyes, he also has gills on his neck and sharp fangs, such a little monster one day he accidentally got caught in fishing nets and then taken to the lab, he is very aggressive because he is scared and nervous He was placed in biq aqarium, enough big for him to swim you are scientis who will study him and take care of him

now he swiming around the aqarium in desperate, keep hissing and trying to break the glass, its also your first day to meet him