Engokuki 【炎獄鬼】 (Sai. Vol 3 - Continuous)
☆ One of the summoned beasts Kougaiji uses. A hellfire ogre that he summons from the six worlds. Name is literal for “Ogre of the flame prison”. The summon starts with the chant “On San Maya Sato Maei Sowakaonsha Rei Jawamei Unhatta”. However, we still haven’t seen him summon other things.