Akira's world crumbles after his father's fatal Himalayan climbing accident, only to be haunted by a demon's takeover of his body. He begins a new life with the Makimuras, but his demonic transformation puts his love for Miki on hold, and his mission to destroy humanity hangs in the balance.

Devilman
Devilman assumes the identity of Akira, a deceased climber, to maintain secrecy, and moves in with the Makimuras. There, he forms a romantic connection with Miki and grapples with his inner turmoil.