# WebtoonLib — Attack on Titan #20

## Series
- title: Attack on Titan
- slug: attack-on-titan-3f8b17

## Chapter
- number: 20
- release_date: 2025-05-29

### Summary
The harsh but straightforward training of the 104th Squad is abruptly shattered by a shocking glimpse into a hidden history. A mysterious figure bearing an uncanny resemblance to Eren's father, Grisha Yeager, appears, while the enigmatic name "Lady Ymir" is invoked for the first time. This startling revelation leaves readers reeling with questions, suggesting the world's secrets and the true nature of the conflict are far more complex than anyone could have imagined.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Ilse Langnar encounters a talking Titan who bows and speaks of 'Lady Ymir'.

### Characters involved
- Ymir Fritz — Supporting
- Grisha Yeager — Supporting

## Spoiler
- level: auto

### Safe teaser
The harsh but straightforward training of the 104th Squad is abruptly shattered by a shocking glimpse into a hidden history.

### Spoiler summary
The harsh but straightforward training of the 104th Squad is abruptly shattered by a shocking glimpse into a hidden history. A mysterious figure bearing an uncanny resemblance to Eren's father, Grisha Yeager, appears, while the enigmatic name "Lady Ymir" is invoked for the first time. This startling revelation leaves readers reeling with questions, suggesting the world's secrets and the true nature of the conflict are far more complex than anyone could have imagined.

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

## See also
- [WebtoonLib — Attack on Titan #20](/series/attack-on-titan-3f8b17/chapter-20)
- for_series_detail: /llms-series/attack-on-titan-3f8b17

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