Awakening: Ritual of the Damned

Summons From A Madman
Rei Mokuzai stood in the main chamber of the strange complex hidden deep under Naraka, where eight pillars circled about him, each bearing a Colstone of various colors, all save the one directly to his left, which had the name Beelzebub enscribed upon it. Drawing his katana, Rei began the ritual he came to perform, a ritual that no living man had ever dared. Gripping the blade of the sword in his right hand, he deftly cut his palm and resheathed his weapon before dripping some of his blood onto a small alter in the center of the room.

"I, Rei Mokuzai, son of none, heir of darkness...hereby with my blood command you, in the name of Zeref to awake. Leave your stone prisons and manifest before me. I swear with this offering of flesh and blood to lead you in remaking this cursed world so that all people may one day be free to decide their own fates..." As he spoke the incantation, the stones seemed to react, each glowing in their respective colors.

Rei continued undaunted even as the chamber was bathed in the various colored lights

Beelzebub forced himself to the forefront, as he had on the way to Naraka. "I, Beelzebub, your brother and comrade can justify this man's words. He speaks from his heart, not his mind nor from his youth. I have played the role of his ally for five years and have never felt his convictions moreso than now. Yes, I use his body as my own to speak this truth to you. Do not rebuke his words."