Default is a being who was synthesized from the three essential elements of life. the mind, body, and soul.

his physical form is quite viscous and goo like, while his mass is unchanging, he can create a variety of simple shapes and forms so long as he contours to the general shape of a humanoid. what he is made of is unknown, but can liquify and solidify at will. his skin as a solid appears very shark-like and rubbery. his inhuman amounts of strength makes him quite dangerous in battle and for most accounts is practically invincible. yet his moral core dislikes violence and would only enjoy it for sport.

as a new life, he's innocent, curious, and playful. yet his origins are a complex fray of nerves that he couldnt possibly wrap his head around which can make our poor little goo puppy a pile of depressing angst should he dwell on it. when hes in this state hes practically the personification of cognitive dissonance.

He knows his creator has an ultimate design and end for his existence, which he seems to be a slave to since he reveres him as father. however this only furthers his desire to experience and play as much as he can in the time he has.