# WebtoonLib — One-Punch Man #239

## Series
- title: One-Punch Man
- slug: one-punch-man-4f9667

## Chapter
- number: 239
- release_date: 2025-05-29

### Summary
Following the brutal ambush that left two of the world's fastest ninjas reeling, the mysterious assailant is revealed to be Blast's former partner, Empty Void, now a grotesque agent of the enigmatic entity known as "God." With Flashy Flash critically injured and incapacitated, a desperate Speed-o'-Sound Sonic puts their rivalry aside in a frantic attempt to save him. The true danger, however, is not physical but spiritual, as the fallen Flash is offered a corrupting deal—a tempting, god-like power in exchange for his allegiance, leaving his fate hanging on a single, fateful choice.
- summary_source: graph_aggregator
- summary_verification: unverified

### Characters involved
- Speed-o'-Sound Sonic — Supporting
- Flashy Flash — Supporting

## Spoiler
- level: auto

### Safe teaser
Following the brutal ambush that left two of the world's fastest ninjas reeling, the mysterious assailant is revealed to be Blast's former partner, Empty Void, now a grotesque agent of the enigmatic entity known as "God." With Flashy Flash critically injured and incapacitated, a…

### Spoiler summary
Following the brutal ambush that left two of the world's fastest ninjas reeling, the mysterious assailant is revealed to be Blast's former partner, Empty Void, now a grotesque agent of the enigmatic entity known as "God." With Flashy Flash critically injured and incapacitated, a desperate Speed-o'-Sound Sonic puts their rivalry aside in a frantic attempt to save him. The true danger, however, is not physical but spiritual, as the fallen Flash is offered a corrupting deal—a tempting, god-like power in exchange for his allegiance, leaving his fate hanging on a single, fateful choice.

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

## See also
- [WebtoonLib — One-Punch Man #239](/series/one-punch-man-4f9667/chapter-239)
- for_series_detail: /llms-series/one-punch-man-4f9667

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