Dungeon Sign-In: Obtain the Ancient Holy Body at the Beginning

First day in the dungeon. "Ding dong!" "Sign in to the dungeon!" "Get the reward: Ancient Holy Body!" Day two in the dungeon. "Ding dong!" "Sign in to the dungeon!" "Get the reward: The Great Desolate Prisoner's Heavenly Finger!" The third day in the dungeon. "Ding dong!" "Sign in to the dungeon!" "Get the reward: Thunder Emperor's Treasure Technique!" "Host! You are already invincible!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.