His Male Roommate Is a Runaway Princess

On the eve of her wedding, Evelyn Wynne, daughter of the crown prince, discovers that her fiancé Adrian and the regent Silas plan to turn her into a tool for bearing royal offspring. She cuts off her long hair, flees under the alias Eli Winter to the all-male Black Moon Military Academy, and ends up as roommate of the stern commander Ronan. Amid brutal training, Evelyn earns the trust of her fellow cadets with her tactics and courage, and unexpectedly awakens the silver natural moon mark between her and Ronan. Then Jace, a cadet from a civilian background, manifests a dark red mate moon mark, drawing the three into an artificial marking experiment. During the investigation, Evelyn finds out she has been the core specimen "LUNA ZERO" since childhood. The royal family locks down the academy and exposes her identity via a blood crystal; Evelyn abandons her chance to escape and infiltrates an underground laboratory to rescue female victims. Silas launches the Eclipse Project to control the artificial markers, and Evelyn risks losing her voice to use the Sovereign's Voice to lift the command. Finally, at a nationally broadcast mate ritual, she exposes the royal family's crimes, shuts down the artificial marking system and defeats Adrian. After Silas is arrested, Evelyn abolishes the gender restrictions at the military academy and becomes the kingdom's first female commander on the strength of her real combat records.