Kurai tamashi ref sheet

EDIT: UPADTED ART AND BETTER SIZE CHART (including Samshi's 2nd form)
name: Kurai Tamashi
gender: they say he's male because of his masculine sounding voice
age: unknown
birthday: unknown
personality: very cruel and tricky STAY AWAY FROM HIM 

Strengths: unknown
weakness: the seven souls

backstory:
He was the demon who tried to take over 1000s of years ago until the original seven souls defeated him by locking him away. As time passed by the spell started to fade and Kurai Tamashi's soul can roam around and posses people for short amounts of time