Doomsday Sign-In System

24-Year-old Xu You was reborn in the end of the world and received the "Doomsday Sign-in System". He looked at the empty land and shed tears silently. "I just want to be an ordinary salted fish!" The complex living environment, the intrigues among people, and the hungry eyes around her, Xu You is so harmful to Pia! You are obviously an otaku, why would you do such a dangerous thing? Please let me go! "Ding! Congratulations on getting the doomsday sign-in system. Remember to sign in every day. Surprises are always waiting for you!" A sweet girl said in her mind. An inexplicable smile appeared on Xu You's face. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.