Kotta Ruske serves as an aide to Melkian Information Ministry Intelligence Department Undersecretary Fedok Wokkam. He assists Wokkam in overseeing military intelligence operations and executing strategic objectives concerning the manipulation of experimental military units. This includes facilitating the transfer of disgraced Red Shoulder Battalion commander Yoran Pailsen into Wokkam's custody after a court-martial breakdown engineered to appear mental.

Ruske participates in interrogations at a specialized medical prison on Kuzusk, where devices extract information from Pailsen regarding Chirico Cuvie's so-called "abnormal survivor" abilities. Later, Ruske delivers evacuation orders to M7 military base Commander Yugunt on Galeade following an experimental unit's survival of a catastrophic polymer ringer liquid tank farm explosion. This order mandates total Gilgamesh Confederation forces withdrawal from the planet, abandoning the base due to its loss of strategic value.

Ruske operates consistently within military intelligence hierarchies, executing administrative and logistical tasks for Wokkam's agenda to harness Pailsen's research on supreme survivors.