The 'rakudai kishi' novel mainly revolves around the story of a young character in a world full of knightly orders and combat. The main character has to train hard, overcome his weaknesses, and prove himself in a highly competitive and dangerous environment. There are elements of friendship, rivalry, and self - discovery as he navigates through different situations and battles against strong opponents. This creates an exciting and engaging story filled with action and adventure.
Well, 'area no kishi fanfic' might be a fan - created fictional work based on 'Area no Kishi'. It could center around different aspects. For example, if 'Area no Kishi' has a particular setting like a fantasy land, the fanfic could explore more of that setting, introduce new elements, or expand on the existing storylines of the original work. It could also focus on the backstories of the characters that were not fully explored in the original.
It's hard to give an exact time as it depends on the manga's plot development. But typically, Yuta Okkotsu shows up when certain events and character arcs lead to his introduction.
Since I'm not well - versed in Yuta Tanaka's light novels specifically, it's hard to say for sure. But in general, light novels often have simple yet engaging language, vivid characters, and unique story settings. His works might also follow these trends.