Riko Silvian/History

Early life
Not much is known about her early life, other than she recieved training as an excorcist and healer, on both a spiritual and physical level. Despite still being a young teen, she had established a reputation as an assassin, with her white hair, white wings, youth, and deadly efficiency earning her the nickname "Angel of Death". Back then she only had her exorcist and healer skills, as well as lightning attacks, a pair of normal twin daggers, and a pair of pistols with self-refilling magazines.

A dark power and a darker path
At first, Riko was a cheery, kind girl who spent a lot of time playing and adventuring with her half-sister Veronica, and her then girlfriend Matama. It was during that time that her mother, Pandora Sakurazaki, completed a series of trials to become a deity of the Greek pantheon. Soon afterwards, Riko was visited by the goddess of magic, Hecate. As a show of goodwill, the goddess offered a spell-book containing both basic and advanced spells, but none that involved the darker arts of magic. Riko was also taught her first spell, which would soon become her most used one and the one she became most proficient at using, a portal spell.

Time went by, and eventually Riko requested a book on dark magic from Hecate, which she refused to give her, claiming that she destroyed all related books. Annoyed by the refusal and out of arrogance, Riko claimed that she was just a convenience, and that if she won't teach her the dark arts, she would find a different way. Soon after, she was approached by the trickster god Loki in disguise, who gave her a necronomicon, which is a term used for books focused on necromancy.

More time passed and the by now much more arrogant and cold Riko was working in secret on creating an army of undead and demons, keeping them hidden through the use of portals. During that time, she was hired for three assassinations, each one with a higher bounty than the previous one. For the first successful assassination she was given a large treasure. For the second one she was rewarded Draupnir, a magical ring that creates six copies of itself every six days. And for the third one, she was offered a place among the nobility of Hell, much to her surprise. It turned out that the man who was sending her on the missions was in fact a high ranking demon noble, Vassago. Riko agreed, but requested to first finish her plan to kill a grand amount of humanity, to which Vassago agreed.

Having studied necromancy, Riko had used her girlfriend Mata's pactio artifact with her as a phylactery, so that in case she was killed, she'd return as a lich. Once she finished her preparations for the attack, she picked the city of Beijing as her first target with the goal of using the corpses of the most populated city in the world to greatly increase the amount of undead in her army. She overlooked the attack from a grand demonic castle she had summoned on the outskirts of the city, and enjoyed the sight of the slaughter. Her mother, Pandora Sakurazaki, unable to force herself to do anything against her own daughter, she asked her other daughter, Veronica, to stop Riko. After a surprisingly short fight in which Veronica, using a special sword given to her by Pandora as well as a set of summoned armor, defeated Riko, wounded her seriously and imprisoned her.

Refusing to accept defeat that easily, Riko used a summoning spell to call a succubus then used a different spell to swap bodies with her. Having access to the succubus' unharmed body, Riko portaled out of the prison, taking her incapacitated body with her. After having healed her body and having switched back, she was approached again by Vassago, who commented on her failure and that it was time for her to hold her part of the agreement and to join Hell, which she gladly did, becoming a princess of Hell.