The Female Apprentice Insists on Leading Me to Show Off

As the male protagonist of the Invincible, Merciless, and Immortal streams, Eun Gu carefully protects the earth every day, defeats alien invaders, smashes asteroids that attack the earth, and even mediates when the earth's creatures and lichs fight to break up the earth's continent. For countless years, Eternal thought that his life would continue like this, until 100 years ago, he accepted a female apprentice... From then on, the female apprentice led Eternity on a road of no return where she forced herself to show off. "Disciple, tell me how to show off in front of the whole school!" "Disciple, I failed in my pretense today, how can I improve next?" "Disciple, I'm currently at a large-scale show-off site. How should I show off? I'm waiting online. It's quite urgent." "Disciple, I heard that there is a Sakamoto in Fuso Country who is known as the 'King of Pretending'. I am going to go there today to ask him for advice on how to pretend to be pretentious." "Disciple, I heard that I have never... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.