# WebtoonLib — Brother Knows Best #9

## Series
- title: Brother Knows Best
- slug: brother-knows-best-fa6ab9

## Chapter
- number: 9
- release_date: 2025-05-08

### Summary
The chilling mystery of Raviel's sudden coldness is solved, confirming she was indeed poisoned. However, that revelation is quickly overshadowed by a more shocking twist: the two "lunatics" in her life, Duke Haven and her brother Edwin, are not rivals but a secret team. As fan theories about a shared regression ignite, it becomes clear that the two men have been working together all along to change her fate, leaving an unsuspecting Raviel to manage a conspiracy she is the center of.
- summary_source: graph_aggregator
- summary_verification: unverified

## Spoiler
- level: auto

### Safe teaser
The chilling mystery of Raviel's sudden coldness is solved, confirming she was indeed poisoned.

### Spoiler summary
The chilling mystery of Raviel's sudden coldness is solved, confirming she was indeed poisoned. However, that revelation is quickly overshadowed by a more shocking twist: the two "lunatics" in her life, Duke Haven and her brother Edwin, are not rivals but a secret team. As fan theories about a shared regression ignite, it becomes clear that the two men have been working together all along to change her fate, leaving an unsuspecting Raviel to manage a conspiracy she is the center of.

## Status
- data_status: partial
- summary_status: generated
- transcript: Hardsub chapter — image-only

## See also
- [WebtoonLib — Brother Knows Best #9](/series/brother-knows-best-fa6ab9/chapter-9)
- for_series_detail: /llms-series/brother-knows-best-fa6ab9

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