Sakyo is a human crime lord.
He’s cold and unfeeling.
He wants to use
demons to control the human world.
He is also very powerful (money talks), and a shrewd business man.
He killed all of his competitors (well, had Toguro kill them - oh yeah,
Toguro is on his payroll...)
His one inconsistency is when he saves Shizeru.
That is the only kind thing I think he has ever done.