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Belau Family: The world's most powerful family that hardly anyone has ever heard of. Consists of only 14 family members, all adopted by the Family Head.

Acheron Belau- MC of the story. Appears to be 17 in age but no one knows that his true age is over 100,000, even he himself does not know. He did not start keeping track of time since 11,000 BCE. World's first mutant. Known powers: ageless, Aura sight, hyper regeneration, super strength, body modification/transformation. Skills: Mastered all fields. Patriarch or Clan Head of the Belau's but to the world he is just a rich orphan with money. The dark years before meeting Helen (His first wife) and creating his first family have warped his mentality, he has an eccentric personality and weird quirks, that suddenly come and go.

Rose Belau- Normal Human. Acheron's personal assistant/carer. Number 1 Assassin in the world. Age 24. Acheron found her starving to death in the slums of Sao Paulo, Brazil. Took her in and personally trained her after one of his adopted daughters decided to live a different life. She holds a black belt in 10 different martial arts, speaks 5 languages fluently, and ranks 1st in the family in hand to hand combat power. She fell in love with Acheron ever since she was 14 and has spent her time trying to get Acheron to see her as a woman and not as the little girl, he adopted all those years ago. Her chance finally arrived nearing her 25th birthday when they spent some time in London. Fights with Psyche and Violet all the time for Acheron's attention.

Elizabeth 'Psyche' Belau- Mutant. Age 21. Power: Hypnosis. Found by Acheron in Belgium after destroying a human trafficking ring at the age of 3. She was originally kidnapped, and her family was slaughtered trying to get her back. Though she ranks 10th in the family in personal combat power, she ranks within the top 5 in case of lethality. She is an expert in interrogation/torture and a master of disguise. There are less than 30 people on earth who she cannot hypnotize. Always bickering with Rose about Acheron's love and attention. Secretly sent by the rest of the family to watch over Acheron, more importantly, to stop him from killing the high schoolers should they trigger his rage.

Alpha Belau- Age: 56. Normal Human. Oldest of the 13 Belau siblings. Genius CEO of 1 of the 5 Pandora HQ's around the world, in charge of Japan's HQ. Ranked 5th in the Family ranks at his peak, fell in ranks due to age. Has a heaven-defying talent for business, head and shoulders above his little brothers that run the other 4 HQs. Acheron found Alpha in the streets of London after Alpha threatened him with a knife and stole his wallet. Acheron had Alpha follow him after he noticed Alpha's talent with arithmetic and business.

Epsilon "Epsi/Psi" Belau- Mutant. Age: 19. Powers: Able to create weak magnetic fields. A technological super genius and hacker at the age of 8, which in turn got her family killed after hacking into the Vatican's secret server and finding something that she wasn't supposed to. Acheron, after finding out she was only a little girl, had Psyche's master erase all related memories of that night and brought her into the family but not before faking her death, so the church wouldn't come looking for her. The night her family's murder, her despair unlocked the powers that slept deep within her. She ranks last in her family in personal combat power but is the most lethal in her family, specializing in over-the-horizon sniping, ranged combat and hacking, with the ability to control the trajectory of her bullets, even Acheron has a little trouble handling her.

Leon Belau- Mutant. Age: 46. Power: Able to see through any object (X-ray vision), the denser the material the harder he has to concentrate, temporary blindness if overused. Picked up by Acheron in Spain after he killed Leon's parents when they used the 5-year-old Leon a human shield when their bank robbery went wrong. Unbelievably skilled as a master thief but ranks lowest in both personal combat power and lethality. He is considered the family playboy even though he is in his forties, he physically looks in his late 20's, early 30's due to that mutants age slowly.

Saegusa Sakura- Normal Human. Age: 17. One of the heirs to Japan's second most powerful business entity, the Saegusa Conglomerate. She has genius-level intellect in all academic subjects and ranked 1st in school until Acheron arrived. Annoyed at the fact that Acheron saw her only as an as a possible annoyance and trouble magnet, feels intense rivalry towards him and wishes for nothing other than besting Acheron at least once. Takes pride in being one of the top 5 student beauties in her school, current rank: 2nd.

Saegusa Sora- Normal Human. Age: 17. Twin brother of Sakura and next in line to be the Saegusa's Clan Head. Not a genius in academics but in martial arts, more specifically, as a peak expert with the sword. He was always seen carrying a katana around with him for his and his sister's protection until Acheron beat his ass and switched over to hand to hand combat. Suspicious of Acheron from the moment he laid his eyes on him, felt as Acheron was dangerous and should not be around his sister. Being on guard against him since that incident on Acheron's first day.

Watanabe Akeno- Age:17. Sakura's childhood friend and her bodyguard. Akeno belongs to the Watanabe Clan who owns Japan's greatest security firm but underneath all that, the Watanabe Clan is an Assassin Clan, their members are all ninjas. Akeno is the greatest ninjutsu genius to ever appear in their long history, just recently broke through into the expert rank. Fell in love with Acheron at first sight. Though she feels Acheron is odd, she promised herself to protect him from her family, until she realized how strong Acheron really was.

Hoshiko Kotone- Age:18. A musical genius only found every 300 years. Her family has a special tradition of proposing by song that caused a huge misunderstanding when she first met Acheron. She wishes for Acheron to spend more time with her and is dead set on having Acheron as her husband. She ranks 1st in the school beauties list. She doesn't show emotion on her face but has been seen smiling and blushing in the presence of Acheron, which has cause Acheron to receive lots of hateful looks due to this.

The 5 Colors of J.I.H.S- 5 Grandmasters only known by their codenames; Red, Yellow, Blue, Black and Pink. They protect the school from the shadows and hardly ever appear in public. Each color specializes in different forms of combat. Also, each has a secret disciple that attends the school. Wary of Acheron because of how mysterious and strong he is.

Amazoness- Age: 17. She got rid of her original name and only goes by Amazoness now. Though she ranks 3rd in the school's Heavens Elite ranking chart, some suspect she has been hiding her true strength. Specializes in both the sword and the bow, Yellow's secret disciple. Though she has lots of suitors wanting to be with her, her only wish is for a man to utterly crush her in battle and she will dedicate her body and soul to that man. She has tied in battle before, but it wasn't the overwhelming defeat that she has been looking for. Her wish came true when she first met Acheron in person, he had dominated her with his piercing gaze alone. A masochistic pervert in which Acheron wants nothing to with since she comes from the line of the legendary Amazonian Warriors who enslave themselves to strong males. She can be seen pestering and stalking Acheron for dates and spars, which causes even more men to curse Acheron in their minds.

Kobayashi Valentina- Mutant. Power: Caple of seeing a couple of seconds into the future. When her Japanese mother had a falling out with her British father when she was 13, she decided to go with her mother. She took her mother's family name of Kobayashi. An unlikely encounter with a general of JMSF took her on the path of the soldier after she unlocked her powers saving a little boy about to get killed by a car.

The A.I "Athena"- Personally created by Acheron 100 hundred years ago to kill Acheron. Her failure to kill Acheron resulted in an accident that caused the modern-day Athena. She is the world's first and most advanced Artificial Intelligence. Her "Cortex" lays in a giant cylinder vat filled with special cooling liquid in the 5th sublevel of Acheron's current base. She acts as Acheron's wife whenever he is home, which causes both Rose and Psyche to grit their teeth in jealousy. Acheron has once tried to change her personality settings but for some reason he is unable to due to the firewalls and encryptions he himself created mutating to something he never foresaw. Has the tendency to casually mention world domination and its destruction when unhappy ever since the family saw Terminator together. Super protective of Acheron and easily gets jealous when women get near him. She was under maintenance during Acheron's first couple of weeks in Japan due to an update in both software and hardware. Mother of Artemis, Hela and Freya.

Artemis- Physical appearance: 5 years old. An A.I created by both Acheron and Athena. She was granted the role of Defense Protocols by Acheron. Her eyes glow pink and is usually seen wearing pink dresses or pink clothes. She spends most of her time checking all defense systems are in an optimal state so she can protect her daddy at any time.

Freya- Physical appearance: 5 years old. Another A.I daughter of Acheron and Athena. She was granted full access to all Support Protocols and systems. She usually is the one to bring messages around to Acheron from Athena when he is out of the house/base. Loves to wear purple and sundresses are her usual go-to clothes but is sometimes seen wearing a cute purple construction jumpsuit when she is busy. Since she sees Acheron the most out of the 3 sisters, she claims to be the most spoiled.

Hela- Physical Appearance: 5 years old. Sister to both Artemis and Freya. She is in charge of all Attack Protocols and Systems. She sometimes comes off as scary and aggressive due to her program automatically looking for weaknesses which causes her eyes to turn all black like a demon. When she isn't wearing a black tactical outfit, she could be seen wearing a gothic Lolita outfit. Complains to Acheron constantly about not having to kill anyone.

Judas- Mutant. Age: Around 2000 years old. Disciple of Jesus. After his betrayal of Jesus, the pain and guilt of his betrayal tortured him and drove him to commit suicide. In the last seconds of his life, his soul and body mutated and took over the body of the person trying to save his life after devouring the person's soul. He jumps from body to body after they either die or become useless to him. He now works under the Catholic Church atoning for his sins but has secretly battled Acheron since he wants Acheron's undying body. He has failed 99 times in the last millennia and a half… but Judas doesn't know that.

Herakles- Mutant. Son of Zeus. Roman Name: Hercules. Power: Super strength and Vitality. Like most men, Herakles fell in love with Helen at first sight. He became greedy and lusted for her, intending to steal her from Acheron but Acheron and Helen constantly moved and escaped from him. Years after the death of Helen, Herakles finally tracked down Acheron, only to be met with the sad truth of her death. Not willing to believe it, he drove his fist through Acheron's chest accelerating Acheron's rampage. Acheron killed Herakles and his party and unlocked the path to Acheron's power-hungry trip through the world.

Arania Tarantuela- An eccentric female from the royal family of the Arachne race that is more interested in eating people than procreating like the others of her race. Travels the world in search of the one that got away. Extreme sadist. Since Arachne live around 300 years and care little for humans, Arania worries not for the troubles she causes and is considered a menace in the USA by The STARS, USA's anti-monster department filled with mutants, they cannot kill her since she is considered royalty and may cause a war.

Shaker- Mutant. Brother in arms of Acheron when he was captured by the Atlanteans. Fought in the Pantheon war.

Thalia Dracul- Mutant. Vampire Originator nearly 600 hundred years old. Twin sister of Vlad Dracul, most famously known as Vlad the Impaler. Ex-fiancée of Acheron, whom she thought dead after him and Vlad failed to return from the battle with the Ottomans. It wasn't until she met who she thought was the Werewolf Originator that realized that Acheron could still be alive.