A modern otaku accidentally travels to the world of Journey to the West,
Identity: The "Founding Disciple" secretly accepted by Patriarch Bodhi. He entered the disciples earlier than Sun Wukong... Maybe just a few days? Or even hours? The founder left the words "Watch your junior brother" before wandering around, leaving the protagonist confused to face the wild and untamed stone monkey who had just come to report.
Very good, very funny, very imaginative