The popular fantasy novel 《I Log In Alone》 spin-off SD 4 cut gag manga! The world was met with cataclysm with the advent of the Sky Castle. This is a comical (!) adventure story (?) of Si-Woo Jeong, who has awakened as an underground player, and Su-A-Rin, who has become a supporter of Si-Woo, by rescuing Su-Rin from the sky castle! - Google Translate