The story of is set in a world recovering from a devastating alien invasion. Centered on the elite Kashinomori Academy, it follows students training to wield "Douryoku"—a mystical power channeled into objects to defend against future threats. Setting and History

: The story follows Seiichi, who is admitted to Kashinomori Academy because his initial tests showed immense Douryoku potential. However, he is unable to manifest this power in any practical way, leading others to consider him "useless" or a fluke.

Koiken Otome (Yuzu's Route) #17 (FINALE) - Visual Novel Corner☆

: A character involved in more high-stakes supernatural plotlines, including a "legendary successor" narrative in her specific route.

: Rather than traditional combat power, Seiichi possesses a unique and rare form of Douryoku that allows him to support others, making him a central figure in his team despite his lack of offensive capabilities.

The game features several heroines, each with their own story paths:

: Another major character who has a dedicated route focusing on her personal growth and relationship with Seiichi.