Character Sheet
Name: Mattis of the Pool
Age: 24
Gender: Male
Role: Staff (Pool-boy and Lifeguard)
Apartment No: n/a
Appearance: 
1. Human Form: Enormously tall and pale, with coal-black eyes and dark, perpetually-wet hair that might be blond or red or even black, it's really hard to say . . .
2. Yokai Form: A large, pure-white horse, built thick for cold weather, its mane drips continuously. Its pelt has the texture of a seal's.
Race: Fossegrim (a kind of nix, a water-spirit) 
Abilities: Like all Fossegrim, Mattis is a shape-shifter but is somewhat limited in his selection. He's mastered the human form, and can do a passable golden-necklace, but everything else turns out a bit furry and blue (for some reason). 
At will (or while in river-horse form), his skin/fur becomes adhesive, binding other beings to him. It's impossible to escape once attached to a Fossegrim except through dire means (there are stories of people who cut off their hands)--Mattis must consciously release his captive. He can also sense when someone is drowning in his waters.
Strengths: 
-Mattis doesn't need to breathe and sinks like a stone to walk along the bottom. It comes in handy when he needs to clean the pool.
-Impeccable (if somewhat monochrome) good looks--it comes with the territory, or rather, the ability to shape-shift.
Weaknesses: 
-Mattis can't spend more than a day away from the water before he begins to suffer psychologically, first becoming irritable, and then melancholic before succumbing to a deep depression. 
-Lacking the Fossegrim's usual knack for music, Mattis longs for the sound of his kin's melancholy violin and will absolutely worship anyone who can string a few harmonious notes together. 
-Like most of his kin, he harbors some slight homicidal tendencies--nothing serious, just the occasional urge to drown people. Not an especially desirable trait in a life guard. 

Bio: Born in a cold northern stream, Mattis grew up with minimal guidance from his rather traditional mother. To her, his musical inability made him a runt and a disappointment of scant significance, more of a shame than a joy. Out of curiosity, he attended a few years of human school before leaving his home waters in search of acceptance and maybe a bit of excitement. He eventually discovered something very like that at the Primrose Terrace. As a backwater yokai with little experience of the world, he views the descendents with their bodyguards as glamorous figures. For now, he passes as a harmless nereid and maintains his little pool with great pride, making him a prized employee.