In 21xx, world civilization died out due to energy exhaustion, human population gradually decreased, and different monsters gradually appeared in various parts of the world. In the forest where monsters raged wildly, there was an old hunter and his granddaughter Leah. One day Leah was accidentally snatched away by a monster, and when Leah's life and death were uncertain, the old hunter prayed to the witch for the ability of immortality in an attempt to rescue Leah in the depths of the forest, and the ability that the witch gave him was soul transformation, that is, : Occupying the monster's body at the moment of touching the monster, the old hunter relied on using the monster's body to kill Leah all the way, and what was waiting for him was Leah's gun who did not recognize Grandpa but regarded him as a monster Mouth... After the gunshots, could Leah still recognize the old hunter who had changed his body several times?