Jishou F-Rank no Oniisama ga Game de Hyouka sareru Gakuen no Chouten ni Kunrin suru Sou desu yo?

At the prestigious Shishio Academy, only Japan’s finest—those excelling in academics, athletics, or noble lineage—are granted admission. But beneath its elite facade lies a ruthless battleground where strength reigns supreme, and survival hinges on victory in high-stakes competitions. This is a cutthroat environment where only the strongest thrive. Guren, a shadowy legend feared for his unbeatable prowess, longs for a peaceful, ordinary existence. Deliberately flunking his entrance exams, he lands in the lowest rank—F-class. Yet when his younger sister Karen reappears in his life, everything shifts. Faced with her peril, Guren’s dormant power resurfaces, shattering the academy’s rigid hierarchy. His true strength, long concealed, is unleashed to protect what matters most.