noun
epistolary novel
A novel told through letters, diary entries, or other documents. A literary term used in academic or critical contexts.
『若きウェルテルの悩み』は有名な書簡体小説だ。
"The Sorrows of Young Werther" is a famous epistolary novel.
Compound of 書簡体 (epistolary style) and 小説 (novel).