Hartmann (ハルトマン) is one of the knights that protects the heavens alongside Legamünt. He acts distanced and doesn't talk much about himself upon first enounter. He is confident in his own power and is considered a very influential person. He doesn't care about making a strategy, finding it bothersome. Instead, he uses his utmost power to resolve trouble in critical situations. He hates matching his pace with others, being challenged head-on, and troublesome things.