Marcus

Marcus (マーカス) is an astronaut working onboard the Legitimacy Kingdom civilian space station Princess Nikolaschka.

Dance with Noble Sister
Marcus was among several astronauts on a spacewalk outside the Princess Nikolaschka at the time it generated an artificial aurora to interfere with the Destruction Fes targeting the Celestial Flowers festival, as well as during the subsequent attack on the station by Azureyfear Winchell's faction.

Skills and Abilities
Marcus's exact capabilities aren't known but he can be presumed to possess some degree of the skills required of an astronaut.