100,000,000 Years Until the Main Story Begins

100,000,000 Years Until the Main Story Begins is a Korean web novel that follows the protagonist who finds themselves inside the novel they were reading, only to discover dinosaurs roaming the land. Filled with action, adventure, comedy, drama, and elements of fantasy, this story explores the mystery of the era the protagonist finds themselves in and delves into themes of psychological depth, all within the genres of ecchi, gender bender, harem, martial arts, seinen, and slice of life.