A High School Student Was Asked to Slay a Demon! ?

In the battle between gods and demons, the Heavenly Lord Zhang Fan and the demon king from another world both fell. However, their immortal souls entangled and fought, and they fell into reincarnation together. His memory was sealed, and Zhang Fan, who became a mortal, received help from Cui Fujun of the underworld. He embarked on the path of spiritual practice again, gradually unlocked his memory, and cultivated immortals and slayed demons.