The Hourai Elixir (蓬莱の薬 Hourai no Kusuri) was created by Yagokoro Eirin using Houraisan Kaguya's power of the manipulation of eternity. Anyone who drinks this forbidden elixir will cease to age, never become ill, and will never be able to die. One will be as frail and vulnerable as before, but every injury shall cease; critical injuries will be healed in a matter of days. Complete destruction results in complete restoration.
