Ichiban Ushiro no Daimaou - Volume 13, Chapter 2 — Eternal Happiness

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume

I transmigrated and went through numerous hardships to become an official, but unexpectedly, I was falsely accused by my superior and thrown into prison.Then, I awakened the Eternity Mirror and began the cycle of cultivation. I could solidify my fate with [Dao Fruit], ensuring eternal enlightenment about Tao.Using parallel worlds as a way to avoid calamities, I sought blessings in the real world...In the first life, I joined the Heaven and Earth Society as an important mission to resist the Qing Dynasty. I condensed the fate of [Righteous Thief], performing righteous deeds, striving to conquer my destiny. Faced with threats from the imperial court, there was a chance to seek good luck and avoid misfortune. I also became a disciple of the Dragon Gate Sect's Daoist, learning the art of the Corpse Immortal.I condensed the fate of [Underground Lord], a third-class wandering ghost in the underworld without a ghost register or duties, the beginning of Corpse Immortals...What about the second life? I haven't decided yet...

They took his name, stole his life, and fed on his pain. But they made one mistake—they let him live.Betrayed by his own blood and sold into slavery, Prince Oliver Von Rich lost everything—his title, his freedom, and his future. For years, his captors in the Somaran Empire bled him dry, using his Royal bloodline as fuel for their Aether.But when they sought King Solomon’s Staff—a relic said to grant any wish—Oliver rebelled. Left beaten and dying, his blood soaked the ancient artifact… and awakened it.Dragged back in time to the eve of his kingdom’s fall, Oliver is no longer a helpless prince. With the scars of his past and knowledge of what’s to come, he’ll rewrite fate—even if it means becoming a monster.To destroy the empire that broke him, Oliver must embrace the cursed power of the most vile demon known to man.