純愛

1. Origins, structure, and basic meaning

• Structure: 純愛 (じゅんあい) is a noun presenting sincere, undivided love as the subject of a story or evidence.
• Basic usage: 二人の純愛を描く makes pure love the theme portrayed by a film, while 純愛が伝わる makes it the feeling conveyed by old letters.

2. Common pitfalls and similar expressions

• Portrayed theme and conveyed feeling
  • 純愛を描く is transitive: a work portrays the love. 純愛が伝わる instead presents the feeling as what reaches the reader, so the viewpoints marked by を and が differ.