# WebtoonLib — Lion Heart #66

## Series
- title: Lion Heart
- slug: lion-heart-d3d4f3

## Chapter
- number: 66
- release_date: 2025-05-13

### Summary
Dr. Yoon Haejun's boundless energy is put to the ultimate test as she spends the day with Seo Yihan's formidable chaebol family. Far from being intimidated, the "Shameless Seal" unleashes her full, extroverted charm, completely winning over her potential in-laws. However, in a hilarious twist, her vibrant personality proves to be too much for the fun-seeking relatives, who become so exhausted by her enthusiasm that they desperately call Yihan, begging him to come and take his girlfriend back.
- summary_source: graph_aggregator
- summary_verification: unverified

## Spoiler
- level: auto

### Safe teaser
Yoon Haejun's boundless energy is put to the ultimate test as she spends the day with Seo Yihan's formidable chaebol family.

### Spoiler summary
Dr. Yoon Haejun's boundless energy is put to the ultimate test as she spends the day with Seo Yihan's formidable chaebol family. Far from being intimidated, the "Shameless Seal" unleashes her full, extroverted charm, completely winning over her potential in-laws. However, in a hilarious twist, her vibrant personality proves to be too much for the fun-seeking relatives, who become so exhausted by her enthusiasm that they desperately call Yihan, begging him to come and take his girlfriend back.

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

## See also
- [WebtoonLib — Lion Heart #66](/series/lion-heart-d3d4f3/chapter-66)
- for_series_detail: /llms-series/lion-heart-d3d4f3

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