Kangoku Academia / Prison Academia

Game rip of the visual novel KangokuAcademia by studio Lilith.

Era of space travel. For many years, humanity has been terraforming lifeless planets. Humanity has explored and settled all planets of the solar system. A single federation of humanity was created to maintain peace and harmony in the universe. However, this was not destined to happen, and all hopes for peace were destroyed and trampled into the abyss of despair. Two warring factions emerged: "Spacenods" and "Efnods", whose ideologies were radically different from each other. Humanity entered a new era - an era of chaos. 

The main heroine of the hentai works at the New Solar Military Academy. She is soon to become one of the participants in the great "Hermes Battle". Currently, she is a special academic instructor and helps newly arrived students to adapt and integrate into the team. 

All plans collapse after an undercover agent from the hostile faction infiltrates the military academy. His only goal is revenge...