# WebtoonLib — Sakamoto Days #99

## Series
- title: Sakamoto Days
- slug: sakamoto-days-301993

## Chapter
- number: 99
- chapter_key: 99
- release_date: 2025-05-29

### Summary
A shocking flashback reveals the tragic truth behind Satoru Yotsumura's past and why he is a wanted man. The woman he fell in love with and started a family with was secretly an enemy agent who, in a moment of betrayal, held their own son Amane hostage. Faced with a horrific choice, Yotsumura was forced to kill his wife to save his child's life. This act of protection was tragically misinterpreted by a young Amane, who only witnessed his father murdering his mother, seeding a deep and misguided hatred that has lasted to this day.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Flashback reveals Satoru Yotsumura killed his wife because she was an assassin targeting their son, Amane.

### Characters involved
- Osaragi — Supporting
- Shishiba — Supporting

## Spoiler
- level: auto

### Safe teaser
A shocking flashback reveals the tragic truth behind Satoru Yotsumura's past and why he is a wanted man.

### Spoiler summary
A shocking flashback reveals the tragic truth behind Satoru Yotsumura's past and why he is a wanted man. The woman he fell in love with and started a family with was secretly an enemy agent who, in a moment of betrayal, held their own son Amane hostage. Faced with a horrific choice, Yotsumura was forced to kill his wife to save his child's life. This act of protection was tragically misinterpreted by a young Amane, who only witnessed his father murdering his mother, seeding a deep and misguided hatred that has lasted to this day.

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

## See also
- [WebtoonLib — Sakamoto Days #99](/series/sakamoto-days-301993/chapter-99)
- for_series_detail: /llms-series/sakamoto-days-301993

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