A truly treacherous highblood of purple blood, he is absolute bourgeoise scum. Jeeyon is a skilled fighter for the Contessa despite his high ranking within the hemohierarchy. He's extremely indulgent and hedonistic to a fault.
He culls many lowbloods before seeing Ardere for the first time, who he develops extremely strong black (vacillating to red) feelings for him. He poses a challenge to Ardere to find him and kill him, culling many of Polari's army while waiting for him. It's unknown whether either fell by each others' blade.