Raiden Ei (Japanese: 雷電影 Raiden Ei), also known by her Goetic name Beelzebul, is the God of Eternity and the current Electro Archon who presides over Inazuma. She is a member of The Seven who also currently functions as the Raiden Shogun of Inazuma.

The previous Electro Archon, Ei's older twin sister Makoto, also known as Baal, died 500 years ago in the cataclysm. Since then, Ei has assumed the Shogunate and continued to rule under the name Baal.

Since Ei cloistered herself to meditate in the 