I! Activate the Zhutian Role-Playing System to Save Mankind

Xiao Yi suddenly traveled to a parallel world similar to Earth. Here spiritual energy has revived, demons and ghosts are rampant, and the human population has dropped by two-thirds. Surviving humans can awaken powerful supernatural powers and practice martial arts. But in the face of countless monsters and monsters in the demon world, humans are still unable to resist. But Xiao Yi, who traveled through time, activated the All Heavens Acting System! Any character in any world he knows can be played as a character and gain all the abilities of the character! The God of Death, Kurosaki Ichigo, the Twin Gods Uchiha Obito, the one-punch warrior Saitama, the fighting nation Supa Saiyan, the Fire Emperor Xiao Huohuo, the Demon Lord who dyes the sky with my demon blood, the fighting Buddha, the Emperor Wushi, the Yetian Emperor, the Wild Emperor... Just when humans and demons thought Xiao Yi had reached his limit, every new role he played made them feel suffocatingly powerful. Human beings finally saw the light, while the demons felt despair... Note: Most of the roles are played in no particular order, just write whatever comes to mind. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.