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He has dark greenish hair that ends at his chest and dark red eyes. He wears a black outfit with black ropes. He wears it with black boots and gloves. He has an earring on his left ear.
In DARK FATE, he wears a black cloak with a hood that covers up most of his face, the cloak had golden linings through it.
Richter suffers from an inferiority complex towards his older brother Karlheinz who he dreams to surpass. He desires to obtain everything that is his brothers', and at first that was Karlheinz’s first wife Cordelia, who on the other hand didn’t mind flirting and encouraging him.
Due to his inferiority complex, he enjoys to looking superior to his nephews, thinking he is stronger than them.
At the beginning, Richter’s plan was simply to use Cordelia's blood to become strong enough to defeat and dethrone his brother. Cordelia knew this but she didn’t mind, because she intended to use him too. Later he genuinely falls in love for her. Even though he knows she loves only his brother, Richter would do anything for her. He was a completely submissive masochist who enjoyed everything she did to him even if it was humiliating.
His only goal is to resurrect Cordelia and to help her, even if that means being her lackey, and if he starts failing to do so, his mentality breaks and he becomes insane and unpredictable. He would be capable of directly attacking Karlheinz, trying to murder his nephews, or trying to rape the heroine (in DARK FATE).
Richter, just like Cordelia, is very conceited and will do anything (going as far as to trick Cordelia to thinking he actually loved her in the anime) to become stronger than his brother Karlheinz and become the head of the family.
As the younger brother of Karlheinz, always lived in his older and stronger brother’s shadow. They fought for the hand of the most desired woman in the Demon World - Cordelia, but he lost. Cordelia chose Karlheinz, but considering Karlheinz’s plot and games, he silently encouraged them to have a love affair, knowing that will push his brother to despair whoever had her body and blood and would never gain her love.
He was the one to find her dying because of the triplets, where she begged him to save her heart, because as long as her heart is still alive, she can be resurrected. She told him to place it in a new vessel and then later to bring her back. He then implanted her heart in Yui’s body, and then handed the baby to Seiji Komori, a vampire hunter, to try and prevent Karlheinz from finding it before Cordelia returned and was strong enough to take full control.
Cordelia was the first wife of his older brother, Karlheinz. However, Richter had romantic feelings for Cordelia and it is mentioned that they fought for her, but he lost. Despite that, they started an affair and had been involved in sexual activities with her many times, once in front of her son Ayato, on a different occasion while Kanato was in the room playing with Teddy and once had intercourse with Richter in front of Laito when he was locked in a dungeon.
Like his brother, Richter is hated and despised by the six brothers of the household.
In Lost Eden Richter is killed by Kino.
|Sakamaki Brothers||Ayato Sakamaki • Kanato Sakamaki • Laito Sakamaki • Shu Sakamaki • Reiji Sakamaki • Subaru Sakamaki • Kino|
|Mukami Brothers||Ruki Mukami • Kou Mukami • Yuma Mukami • Azusa Mukami|
|Tsukinami Brothers||Carla Tsukinami • Shin Tsukinami|
|Others||Karlheinz • Beatrix • Cordelia • Christa • Richter • Seiji Komori|