# WebtoonLib — Dr. Stone #56

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

## Chapter
- number: 56
- release_date: 2025-05-29

### Summary
With their lives hanging by a thread, Senku and Chrome use their scientific ingenuity to navigate a deadly, gas-filled spring. Their perilous quest is for the final ingredient, sulfuric acid, needed to complete their ultimate weapon in the war against the Tsukasa Empire: a communication device. This invention is more than just a tool for victory; it represents the culmination of a 3,700-year-old promise, carrying the legacy of Senku's father and the last survivors of the old world.
- summary_source: graph_aggregator
- summary_verification: unverified

### Characters involved
- Senkuu Ishigami — character
- Yuzuriha Ogawa — character
- You Uei — character
- Yakov Nikitin — character
- Unmo — character
- Ukyou Saionji — character
- Turquoise — character
- Tsukasa Shishiou — character
- Taiju Ooki — character
- Suzu — character
- Sulfurina Ryuu-san — character
- Suika — character
- Stanley Snyder — character
- Soyuz — character
- Shovel — character
- Shou — character
- Shamil Volkov — character
- Akashi — character
- Alabaster — character
- Amaryllis — character

## Spoiler
- level: auto

### Safe teaser
With their lives hanging by a thread, Senku and Chrome use their scientific ingenuity to navigate a deadly, gas-filled spring.

### Spoiler summary
With their lives hanging by a thread, Senku and Chrome use their scientific ingenuity to navigate a deadly, gas-filled spring. Their perilous quest is for the final ingredient, sulfuric acid, needed to complete their ultimate weapon in the war against the Tsukasa Empire: a communication device. This invention is more than just a tool for victory; it represents the culmination of a 3,700-year-old promise, carrying the legacy of Senku's father and the last survivors of the old world.

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

## See also
- [WebtoonLib — Dr. Stone #56](/series/dr-stone-5eb95b/chapter-56)
- for_series_detail: /llms-series/dr-stone-5eb95b

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