The Irregular at Magic High School: The Watcher

Transmigrated Cang, possessing a flint-wielding left eye that awakens a magical world, uncovers a cosmic truth with his cousin, Shenxue: Earth is actually a prison for alien gravediggers, and Shenxue's family bloodline is a container for a spiritual virus. The two break through seven cycles of reincarnation, discovering that the world is actually a fairytale manuscript from a higher realm. Ultimately, they tear apart the shackles of narrative, wielding the silver-haired flint-wielding pen to rewrite the laws, transforming bronze doors into bookshelves, and the gravediggers into footnotes to the fairytale.