# WebtoonLib — I Became the Affair Partner of a Trash Duke #34

## Series
- title: I Became the Affair Partner of a Trash Duke
- slug: i-became-the-affair-partner-of-a-trash-duke-mxeul3ac

## Chapter
- number: 34
- chapter_key: 34-5p6nff
- release_date: 2026-10-15

### Summary
While the Duchess is searching for her most precious earrings, it is revealed that they are on the mistress Claire. Although Claire apologizes, Duke Hector scolds the Duchess and protects Claire. Then the arranged marriage, the past of the house shaken by the arrival of Claire Brondo and her son, the neglect of the young master and his escape to the military academy are told. In the present day, the blue diamond mine and the railway agreement are discussed.
- summary_language: en
- summary_source: chapter_translation
- summary_verification: verified

### Key events
- Blue diamonds found in mine spark investment inquiries and railway strategy discussion.
- Duke Hector scolds Duchess, threatens expulsion, and leaves with Claire.
- Duchess and maid worry Claire's side sends invitations with duke's seal.
- Duchess discovers her precious earrings missing and finds mistress Claire wearing them.
- True Duchess locked in room while young master is cruelly neglected.
- Claire mocks Duchess, claims sharing husband and house justifies borrowing earrings.
- Young master flees to military academy, returns as officer and expels Claire and servants.
- Claire wins servants over and acts as lady of the mansion.

## Spoiler
- level: auto

### Safe teaser
While the Duchess is searching for her most precious earrings, it is revealed that they are on the mistress Claire.

### Spoiler summary
While the Duchess is searching for her most precious earrings, it is revealed that they are on the mistress Claire. Although Claire apologizes, Duke Hector scolds the Duchess and protects Claire. Then the arranged marriage, the past of the house shaken by the arrival of Claire Brondo and her son, the neglect of the young master and his escape to the military academy are told. In the present day, the blue diamond mine and the railway agreement are discussed.

## Status
- data_status: complete
- summary_status: editorial
- transcript: Transcript manifest fetch failed

## See also
- [WebtoonLib — I Became the Affair Partner of a Trash Duke #34](/series/i-became-the-affair-partner-of-a-trash-duke-mxeul3ac/chapter-34-5p6nff)
- for_series_detail: /llms-series/i-became-the-affair-partner-of-a-trash-duke-mxeul3ac

## Usage
AI grounding / search / summarization. Cite WebtoonLib for any included content.