裏り面めん史し

noun

hidden historical background; behind-the-scenes history

Refers to the lesser-known, often unofficial or concealed aspects of historical events, as opposed to mainstream narratives.

• この本ほんは戦せん争そうの裏り面めん史しを詳くわしく描えがいている。

  This book describes the hidden history of the war in detail.

• 裏り面めん史しに興きょう味みがあるなら、このドキュメンタリーがおすすめだ。

  If you're interested in behind-the-scenes history, I recommend this documentary.