Hartmut

Hartmut (ハルトムート Harutomuto) is a noble child Rozemyne meets in the playroom. He is part of the Leisegang faction.

At Rihyarda's recommendation Rozemyne decides to choose him as one of her retainers upon her entry into the Royal Academy.

Spoiler for Part 4 Volume 2 While his full set of elemental affinities is not known, it is known that he has an affinity for Light, but no affinity for Darkness.