Invincible at the Start

Beep! The host has activated the invincibility domain! As long as they are within the domain,

the host is unbeatable!” Chen Changan, a die-hard otaku, travels through a fantasy world. Faced with countless demons and monsters from the outside world,

Chen Changan decides to never leave his invincibility domain until he becomes a immortal. To pass the time, he occasionally trains a few cute and sweet apprentices, but unintentionally raises them to become powerful cultivators, causing the world to be turned upside down.