This Year I Am Eighteen, and I Will Fly Away from the Devil with My Elbow

Seventeen-year-old Lin Yu, as the number one young guard in the southwest region, defeated his opponent and became the number one in the country. After a year of hard work, he led the Brave Team to successfully beat the Devil. When he returned with the Demon King's treasure, he was poisoned at a party hosted by the King and imprisoned in the Demon-Forbidden Prison. Lin Yu:······Very good, it's time to start elbowing the king. ————The following is what the author said———— Lin Yu: No, buddy? I'm only eighteen, you ask me to fight the devil, is that right? Shouldn't I enjoy life at this age? Can I beat it? Author: Young man, you should be more arrogant at your age. Wow, you have been matched with an equally matched opponent. Lin Yu: Evenly matched? Come and listen. Author: Thousand-Year Demon King :) Lin Yu: I am chovy, you can match me well! Author: No matter what, the pen is in my hand and I can write however I like. Lin Yu:...... It's not an invincible novel, it doesn't have a heroine