The Shining was a classic horror film directed by Stanley Kubrick and released in 1980. The movie was about a lonely hotel owner and his family staying in a seemingly comfortable but actually extremely scary room. As time passed, they began to find themselves trapped in a mysterious and terrifying world.
The film received high praise and reputation around the world and was considered a classic in the history of film. The horror atmosphere and the design of the thrilling scenes were widely imitated and used as a representative work in the history of movies.
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.