# WebtoonLib — Oshi No Ko #11

## Series
- title: Oshi No Ko
- slug: oshi-no-ko-e5257b

## Chapter
- number: 11
- release_date: 2025-05-29

### Summary
The prologue culminates in a devastating tragedy as superstar idol Ai Hoshino is fatally stabbed by her obsessive fan, Ryousuke Sugano. Witnessing the horrific event, a young Aqua hears his mother's first and last genuine declaration of love for her children. This final, loving act, however, does little to soothe his grief, instead hardening it into a cold resolve. Traumatized and vengeful, Aqua dedicates his life to uncovering the identity of the person who leaked Ai's location to her killer, setting him on a dark path of retribution within the glittering, deceitful world of showbiz.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Aqua and Ruby enroll in Youtou High School's performing arts and general departments.

### Characters involved
- Aquamarine Hoshino — Main
- Ryousuke Sugano — Supporting
- Ai Hoshino — Main

## Spoiler
- level: auto

### Safe teaser
The prologue culminates in a devastating tragedy as superstar idol Ai Hoshino is fatally stabbed by her obsessive fan, Ryousuke Sugano.

### Spoiler summary
The prologue culminates in a devastating tragedy as superstar idol Ai Hoshino is fatally stabbed by her obsessive fan, Ryousuke Sugano. Witnessing the horrific event, a young Aqua hears his mother's first and last genuine declaration of love for her children. This final, loving act, however, does little to soothe his grief, instead hardening it into a cold resolve. Traumatized and vengeful, Aqua dedicates his life to uncovering the identity of the person who leaked Ai's location to her killer, setting him on a dark path of retribution within the glittering, deceitful world of showbiz.

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

## See also
- [WebtoonLib — Oshi No Ko #11](/series/oshi-no-ko-e5257b/chapter-11)
- for_series_detail: /llms-series/oshi-no-ko-e5257b

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