Akira Nishino most likely dies in The Eminence in Shadow after Yuuka shoots him during the chaos at Messiah’s facility. In his final moments, he realizes “Natsume” is actually Beta from Shadow Garden, and then he’s left mortally wounded.

What happens

  • Akira is a scientist who used his sister Akane in experiments and helped create the “Original Knight.”
  • During the later events at Messiah, Yuuka ambushes him and shoots him.
  • He is described as dying after being mortally wounded, with Beta revealing her identity before his death.

Why people ask

The phrase “in the beyond” sounds like you may be referring to an afterlife or “what happened after he died.” Based on the available story material, there’s no confirmed later comeback for him in the source I found, just his death in that arc.

Quick scoop

So the short answer is: Akira Nishino gets killed off, and the story treats that as the end of his arc.

TL;DR: Akira Nishino is shot by Yuuka, mortally wounded, and dies after realizing Beta’s true identity.