: In 992 AD, an alien race called the Kotona invaded Earth, nearly driving humanity to extinction. In 1010 AD, humanity discovered Douryoku , a power that allowed them to fight back.
: The narrative blends slice-of-life school elements—like arena-style team battles and training—with romantic subplots involving various heroines. Main Heroines and Routes koiken-otome
: A character involved in more high-stakes supernatural plotlines, including a "legendary successor" narrative in her specific route. : In 992 AD, an alien race called
: By 1330 AD, the Kotona were thought to be wiped out, but specialized academies were established to ensure humanity remained prepared for their inevitable return. Plot and Protagonist : In 992 AD
: A student known for her fiery personality and combat prowess.