Toaru Majutsu no Index - Volume 3, Epilogue: Only One. ID_Not_Found.

Lin Fan awakens to a world where chaos reigns, stripped of family, status, and safety. But within the turmoil, he discovers a powerful secret—the Beast Abilities system in his mind.With every threat he eliminates, he earns vengeance points, enabling him to level up his physiques.From the humble Wild Rabbit’s ability—[Rabbit's Hearing], [Swift Foot], [Magnificent Leap]—to the ruthless strength of the Wolf—[Hunter Instincts], [Iron Claws], [Leader of the Pack]—and the Ape’s raw power—[Climb Trees], [Strong Arms], [Inhale Qi]—Lin Fan hones his skills with every battle.Years later, as the feared grand master of a prestigious sect, he looks back in wonder. Who would have believed that his rise to greatness began with the unassuming gifts of a wild rabbit.

The traitor Gu Mang returned to his home kingdom again. Everyone rejoiced in his banishment. It was said the one who hated him most was his closest friend – the cold and stoic Young Master Mo.

A rumour: Young Master Mo prepared three hundred and sixty-five methods of torture to try on Gu Mang, enough to play with him for a year without repetition.

But what’s the truth then?

Well the truth is even more unspeakable–

Mo Xi’s identity: the most abstinent commander of the empire.

His relationship with the traitor Gu Mang: they’d slept together before.

- Description from Novelupdates