The Door to Death Is Fully Open: Killing Ghosts Will Allow You to Evolve Infinitely

[Invincible + System + Ease + Decisive Killing] Ye Kai travels through the strange world of recovery and receives a life-threatening courier at the beginning. At the moment of life and death, he awakens the all-things strengthening system. After awakening to the "Eight Gate Dunjia" purchased from a street stall, Ye Kai's life also ushered in a countdown. Fortunately, you can gain lifespan by killing the weird ones, so the weird nightmare of this world comes... Shenbao tablets? Strengthen! Congratulations to the host for receiving two Teddy kidneys! Fighting for the pirated CD that daddy bought? Strengthen! Congratulations to the host for obtaining eight points of light wheel!