Red Demon Oga, Blue Demon, White Demon.

1, red ghost OGRE

Aru body hosts more than one powerful food cell demon, the red demon for the past universe was known as the NO.1 of the lone warrior OGRE (OGRE), although the temperament is gentle, but once started to anger, no one can be defeated, characterized by a very sensitive sense of smell.

After Aru ate GOD and CENTER, Ogre's power has been fully restored, and he only needs to eat Aru again to be fully resurrected.

But Olga, who had grown attached to Aru because he had accompanied him all along the way, chose to give up and intentionally asked Aru to eat himself to stimulate his awakening, saying that he would become a part of Aru in the future and embark on a culinary journey together with him.

2. Blue Demon

Aru awakens the power of the Blue Demon during his battle with the Horse King, and is more flamboyant than Oga. His blue hair is the result of the Blue Demon in his body (he was originally a brunette, but became a brunette later on, and every time the Blue Demon left his body, he would turn back to brunette).

The Blue Demon's preferred food is different from the Red Demon, Oga, in that the ingredients in the Red Universe can't satisfy his appetite, so he waits for the large amount of ingredients from the Blue Universe, which NEO has swallowed and stored in his body, to be reborn.

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3. White Demon

The white demon with wings hidden inside Aru's body, the three scars on Aru's face when he was born are the characteristic signs of the white demon.

The White Demon was awakened when he ate the Ghost Shell sealed by the Golden Can. He appeared for a moment when Aru and Arcasia were fighting over God and had their necks broken, scaring Arcasia and sending Aru flying, and then at the end of the battle, he took NEO's last punch and blew up NEO's head with a single finger.

Dubbed "the tricky one" by Ogre, the Blue Ghost claimed he had terrifying energy and said the White Ghost should just lie down. Calls Aru "Mr. Aru" and loves to hear him say "thank you for your hospitality" at the end of every meal.