# WebtoonLib — Dr. Stone #231

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

## Chapter
- number: 231
- chapter_key: 231
- release_date: 2025-05-29

### Summary
Following their historic lunar landing, the crew confronts their mysterious adversary, Whyman, only to discover it is a parasitic, mechanical alien intelligence offering petrification as a twisted gift of immortality. Through brilliant negotiation rather than conflict, Senku successfully wins over the alien hive-mind, securing a peaceful future. However, never one to rest, the genius scientist unveils his most audacious project yet: the construction of a time machine. With the help of his allies, both old and new, Senku aims to travel to the past and prevent the global petrification from ever occurring, a final, monumental challenge that threatens to erase the very existence of stone-world descendants like Kohaku and Chrome.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Senku announces the ultimate scientific goal: building a time machine to save those lost to petrification.

### Characters involved
- Suika — character
- Tsukasa Shishiou — character
- Gen Asagiri — character
- Ruri — character
- Chrome — character
- Kohaku — character

## Spoiler
- level: auto

### Safe teaser
Following their historic lunar landing, the crew confronts their mysterious adversary, Whyman, only to discover it is a parasitic, mechanical alien intelligence offering petrification as a twisted gift of immortality.

### Spoiler summary
Following their historic lunar landing, the crew confronts their mysterious adversary, Whyman, only to discover it is a parasitic, mechanical alien intelligence offering petrification as a twisted gift of immortality. Through brilliant negotiation rather than conflict, Senku successfully wins over the alien hive-mind, securing a peaceful future. However, never one to rest, the genius scientist unveils his most audacious project yet: the construction of a time machine. With the help of his allies, both old and new, Senku aims to travel to the past and prevent the global petrification from ever occurring, a final, monumental challenge that threatens to erase the very existence of stone-world descendants like Kohaku and Chrome.

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

## See also
- [WebtoonLib — Dr. Stone #231](/series/dr-stone-5eb95b/chapter-231)
- for_series_detail: /llms-series/dr-stone-5eb95b

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