# WebtoonLib — Dr. Stone #213

## Series
- title: Dr. Stone
- slug: dr-stone-5eb95b

## Chapter
- number: 213
- chapter_key: 213
- release_date: 2025-05-29

### Summary
A disastrous experiment throws the Kingdom of Science into turmoil when a Medusa device unexpectedly activates, seemingly triggered by sonar expert Ukyo Saionji. With their lunar mission jeopardized by what appears to be a booby trap from their enemy, Whyman, the group is forced to investigate the chilling possibility of a traitor in their ranks. However, as the evidence unfolds, it becomes clear that Ukyo is not a rat, but a victim of an automated fail-safe. Undeterred by this new threat, Senku escalates their plans, leaving allies like Gen in disbelief at the next monumental step: launching a satellite in the stone world.
- summary_source: graph_aggregator
- summary_verification: unverified

### Characters involved
- Gen Asagiri — character
- Senkuu Ishigami — character
- Ukyou Saionji — character

## Spoiler
- level: auto

### Safe teaser
A disastrous experiment throws the Kingdom of Science into turmoil when a Medusa device unexpectedly activates, seemingly triggered by sonar expert Ukyo Saionji.

### Spoiler summary
A disastrous experiment throws the Kingdom of Science into turmoil when a Medusa device unexpectedly activates, seemingly triggered by sonar expert Ukyo Saionji. With their lunar mission jeopardized by what appears to be a booby trap from their enemy, Whyman, the group is forced to investigate the chilling possibility of a traitor in their ranks. However, as the evidence unfolds, it becomes clear that Ukyo is not a rat, but a victim of an automated fail-safe. Undeterred by this new threat, Senku escalates their plans, leaving allies like Gen in disbelief at the next monumental step: launching a satellite in the stone world.

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

## See also
- [WebtoonLib — Dr. Stone #213](/series/dr-stone-5eb95b/chapter-213)
- for_series_detail: /llms-series/dr-stone-5eb95b

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