First it's confirmed that it takes after Seoul Station's Necromancer.
Second white tiger guild's 2nd division cheif and his right would end up as his allies. Third person coming to kill him...rank S would become his shadow soldier
All these can be related to above mentioned SSN.
You guys remember how the s class younger brother of the so called "gecko" wants revenge what if jin gets the older brothers shadow and uses it against him
hsbhassan