|This article is about the character. For the sector, see Poseidon Nero Sector|
|“||I have come to posses everything in the Aoi Cosmos...by obeying the dice...and following their guidance. These dice will never betray me. It matters not if my son resorts to foolish tactics. It matters not if the Empire falls. Nor if millions...nor even billions die. The ultimate result will be the same. I will be victorious.||”|
—Poseidon Nero, Chapter 137
Poseidon Nero (ポセイドン・ネロ Poseidon Nero), also known as the "Emperor" (皇帝 Kōtei), is one of the Oración Seis Galáctica, the supreme ruler of the Nero Empire and the ultimate authority of the entire Aoi Cosmos.
Poseidon Nero is a tall elderly alien being with features of aquatic animals, having a mass of tentacles for hair and a matching "beard" and fins in place of his ears. Additionally, he has sharp eyes and spotted skin. He wears a high collared coat with a chain holding the cuffs together, ocean-themed flowing robes, and a long cape that has the symbol of the Nero Empire on the back.
Poseidon Nero is a fatalist who leaves every one of his important decisions to the rolls of his guiding dice, which are said to be so perfectly accurate that it allowed him to build his entire empire within a single generation, and states that he is not so foolish as to defy the dice.
He is also confident that it does not matter whether his son, Shura, causes his empire to eventually crash and burn by his reckless actions; the ultimate result will be the same for he will be victorious and that fate has already been determined by the guiding dice he obeys.
In the past, Nero was an old friend of Ziggy and considers the Demon King to be a wise and thoughtful man he could call a friend. At some point, Nero created his empire in the Aoi Cosmos in a single generation with the power of his Ether and the guiding dice.
15 years ago, Nero adopted Shura as his son after the guiding dice told the Emperor and intended to pass his power to him, but the boy was incompatible. Instead, Shura was taught by Ziggy how to use Satan Gravity. The Emperor asks his son to leave him and Ziggy alone, watching the boy run off the room. When the Demon King pointed out that Shura is a human, Nero simply explains to his old friend that he is a child chosen by the guiding dice but was incompatible with his power before Ziggy came along.
By X492, Nero's power and notoriety earned him a spot among the Oración Seis Galáctica, where he became known as the "Emperor" who ruled the Aoi Cosmos with the ultimate authority.
Hermit discovers mention of Poseidon Nero in the logs of the Edens Zero and investigates further, finding information on him which she shares with the rest of the Crew of Edens as a warning that he is not meant to be crossed. The crew hopes that Nero will not be a hostile member of the Oración Seis Galáctica.
Assembling his top officials, the Oceans 6 and his son Shura for a meeting on Nero 1, Nero remarks that the ocean weeps, though its tears are a drop of the blue sea, they will become a desolate darkness to reduce his flesh to ash as he rattles around the guiding dice in his hand. The Emperor informs his son and the Oceans 6 that Foresta has been violated by Ziggy. When Nasseh notes that Ziggy was dead, Nero tells them that the Demon King has returned to life, and wonders if Ziggy has lost his heart and will become "a cadaver of darkness" to strike him down. After hearing the opinions of Milani, Cyca and Fabiano about Ziggy's actions on Foresta, Nero wishes to know the skull-faced bot's true intentions, stating that the Demon King was a wise and thoughtful man he could call a friend. Rolling the guiding dice on the table, he wonders what has happened to the skull-faced bot. When Shura protests his use of the dice to make important decisions by chance, Nero tells his son to hold his tongue. He explains to Shura that the eyes of his dice will never betray him for that is the power of his Ether, and it is with this power that he built his empire in a single generation for they are his "Sacred Guiding Dice". Glancing at the results of rolling the dice on the table with a contemplating look, Nero remains silent as Fabiano asks him what do their eyes tell him. Getting up from his chair to leave, the Emperor states that if it is their fate, he must obey and declares that he will do nothing, surprising his son and the members of Oceans 6. Exiting the meeting room, Nero tells Shura that he will leave the matter with the Demon King entirely in his hands. When Shura wonders if his father means that, the Emperor explains to his son that he is not so foolish as to defy the dice.
Within his throne room at The Temple, Nero rattles around his guiding dice with his right hand and asks Fabiano why did he not go with Shura and the other Oceans to Nero 66. After Fabiano expresses his concern regarding Shura's actions that could endanger the Nero Empire and implores the Emperor to stop his son, Nero tells the older Oceans 6 member that he has come to possess everything in the Aoi Cosmos by obeying the dice and following their guidance as he makes a roll on the small round podium next to him. Nero states that the dice will never betray him and that it does not matter whether if his son resorts to foolish tactics, if his empire falls, or if millions or even billions of people die, the ultimate result will be the same. With a serious face, the Emperor confidently declares to a horrified Fabiano that he will be victorious in the end and that fate has already been determined and will remain unchanged as long as he possess the absolute power of the "Emperor Dice".
Powers and Abilities
Poseidon Nero is a member of the Oración Seis Galáctica, a group that is stated to be the cosmos's strongest warriors, being renowned for crushing entire planets. He is the ultimate authority of the Aoi Cosmos, outranking every planetary monarch and president there, and has a reputation as being the one person in the Aoi Cosmos that should not be crossed.
Guiding Dice (導きのサイ Michibiki no Sai?): Poseidon Nero utilizes three dice (a d6, d8 and d12 respectively) that he refers to as his "Sacred Guiding Dice" and the "Emperor Dice". He claims that the eyes of the dice never lie to him, which is the power of his Ether, and that fate has already been determined and will remain unchanged as long as he possesses its absolute power.
|106. Prayer Council||Mentioned|
|107. A Planet Where Stars Fall Like Rain||Absent|
|108. Nadia, Love of My Life||Absent|
|109. Red Cave||Absent|
|110. A Robot in Love||Absent|
|111. The Sky of Days Long Past||Absent|
|112. When You Live Life on a Ship||Mentioned|
|113. In the Doghouse||Absent|
|115. The Battle of Foresta||Absent|
|116. The Sky Sweeper||Absent|
|117. Shiki vs. Orc||Mentioned|
|118. Star Drain||Mentioned|
|119. Homura vs. Mora||Absent|
|120. Rebecca vs. Britney||Absent|
|121. Darling Little Piece of Junk||Absent|
|122. Titanic Victory||Mentioned|
|123. The Light of Justice||Absent|
|124. Kiss & Die||Absent|
|125. Heart of Gravity||Absent|
|126. This Doctor, Armed and Dangerous||Absent|
|127. The Doomsday System||Absent|
|128. What's Important||Absent|
|129. So We Can Smile Brighter||Absent|
|130. Oceans 6||Debut|
|132. Chrono Witch||Absent|
|133. Following Ziggy's Path||Hologram|
|134. Judgment Day||Mentioned|
|135. Desert Oasis||Absent|
|137. Empire Dice||Appears|
|138. Prelude to the Aoi War||Mentioned|
|139. White Flash||Mentioned|
|140. Into Planet Nero 66||Mentioned|
|141. A World of Ash||Absent|
|142. Shiki vs. Shura||Absent|
|143. You Didn't Do Anything to Deserve This||Absent|
|144. Through the Looking Glass||Absent|
|145. Homura vs. Milani||Mentioned|
|146. Before We Part||Absent|
|147. Rage, Fear, and Grief||Absent|
|148. Eye of Horus||Absent|
|149. Powers Lost||Absent|
|150. Weisz vs. Nasseh||Absent|
|152. Lost Card||Mentioned|
|153. The False Five||Absent|
|154. Skymech Ninjutsu||Absent|
- Poseidon is the god of the sea in Greek mythology, while Nero was a Roman emperor, whose rule is usually associated with tyranny and extravagance.
|Members||Drakken Joe • Elsie Crimson • Poseidon Nero • Three unnamed members|
|Poseidon Family||Poseidon Nero • Poseidon Shura|
|Oceans 6||Callum Steelford • Lyra • Nasseh • Milani Lucra • Cyca † • Fabiano|
|Beast||Squad 1 • Squad 6 (Britney • Mora • Orc)|