"Dear Diary, I never thought I'd become a big shot in a fantasy land!" is a heartwarming and lighthearted tale that explores the joys. Armed with his Earthly knowledge and cultural references, he navigates the fantastical realm with a slice-of-life approach. Through his diary entries, he share the exhilaration of introducing ideas and concepts from his former Earth, often with amusing and surprising results. < Slice of Life Isekai Light Novel >