The following are the anime characters that I think "What are the high-powered auxiliaries in anime?":
Full-time hunter, Pufu
Owl Yapufu is an anime character A character in the work "Hunter". Appears in the anime "Hunter 2011". He seems to be the calmest, but in fact he has the biggest inner emotions (actually an M). Owl Pufu (シャウアプフ), commonly known as Pufu, or Butterfly Man, is a chimera ant in the shape of a butterfly that can transform into a chrysalis. The second of the three kings' direct escorts appears. Among the three guards, he has the greatest emotional ups and downs. He likes to speculate on the king's thoughts, but he is extremely loyal to the king.
God of Death, Hasward
Yuglen Hasward is a character in the comic book "BLEACH" written by Japanese cartoonist Kubo Tideto. The invisible empire is destroyed. Queshi, the highest rank of the Knights of the Star Cross, was given the holy word "B" by Yhwach, which symbolizes the ability "The Balance". He is Yhwach's personal bodyguard and follows Yhwach to attack Soul Society and the Soul King's Palace. As Yhwach's personal bodyguard, Hasward's strength should not be underestimated. Whether facing the swastika Yamamoto Genryusai Shigekuni or the captains of the Zero Division, Hasward never showed the slightest fear. In order for the Invisible Empire to win the war, Hasward once went on his own to challenge Kyōraku Shunsui, and showed a considerable degree of confidence.
From now on it is the Demon King, Conrad
Conrad, the second son of the previous Demon King. He is an excellent young man who makes people feel relaxed and has a gentle personality. In order to protect the interests, he will sacrifice everything he has. A person who is deeply trusted and relied upon. The second son of the previous Demon King, he is also known as the "Lion of Ludenberk". In order to protect Yuni, he does not hesitate to sacrifice everything he has (according to his own words, including arms, legs, chest, etc.). He is a person who is deeply trusted and relied on by Yugi. He has been to Earth to meet Benefit's mother, and he is also the one who named Benefit. Known as the "Lion of Lutianberk", Mrs. Jerry cultivated a flower for Conrad and named it "Conrad the Indomitable One."
The above are the anime characters that I think "What are the high-powered auxiliary officers in anime?"
The above is purely a personal opinion.