Fujii Itsuki was one of the most important characters in Love Letter. She was a secret admirer, and she was a very important character to the male lead, Shinji Suki. There are many doujin novels about Fujii Iki. The following are some of the more well-known works: 1 " The Secret of Fujii Iki ": This is a novel about the love story between Fujii Iki and Shinji Mika. The plot of the novel was complicated and the writing style was beautiful. It was deeply loved by the readers. 2. Love Letter and Secrets: This is a novel with Shinji Sugawara as the main character, telling the love story between him and Fujii Iki. The description of Fujii Iki in the novel was very delicate, allowing the readers to better understand her feelings. [3. My Promise with Fujii Iki: This is a novel about the love story between Chihiro Ayali and Fujii Iki.] The description of Fujii Iki in the novel was very detailed, showing her character and charm. These are some of the more well-known Fujii Doujin novel readers who can choose according to their preferences.