カールハインツ

Karlheinz  , also known as Tougo Sakamaki  and Reinhart , is the husband of Cordelia, Beatrix and Christa. He is the brother of Richter and the father of all six of the Sakamaki brothers. Karl is also the current Vampire King, leader of all the vampires. In Japan, he is a famous politician whose known as a prominent philanthropist and at Ryoutei Academy, he is a school doctor, using a different appearance.
According to Reiji, Karl is over 2000 years old  . In MORE,BLOOD, he is portrayed with pale skin, long white hair and gold eyes. In his Reinhart disguise, his hair is blonde and wears glasses.
Not much is said about him other than the fact that he could be described as "Man-whorish." And from what the Sakamaki brothers have revealed he can also be strict seeing as when Shu had to repeat another year, he sent him to train in the icy mountains of the North Pole and he 'punished' Ayato after he killed Cordelia. He is constantly referred to as "that person" by both the Mukami and Sakamaki brothers.
According to Cordelia, he would like to die, but no one is strong enough to kill him. He wants one of his sons to obtain the sacrificial bride and gain the power to kill him. Cordelia would like to fulfill his wish to die.
Karl is seen to be able to shape shift and change his appearance to any look he wants.

According to Cordelia, he would like to die, but no one is strong enough to kill him. He wants one of his sons to obtain the sacrificial bride and gain the power to kill him, that's why he started the Adam and Eve project in MORE,BLOOD. Cordelia would like to fulfill his wish to die. Ayato once says that Karl was only pleased with Christa, much to Subaru's agitation.