# WebtoonLib — Oshi No Ko #166

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

## Chapter
- number: 166
- release_date: 2025-05-29

### Summary
Aqua's long and harrowing quest for vengeance reaches its tragic climax as he executes his final plan: a murder-suicide, pulling his father, Hikaru Kamiki, over a cliff into the churning sea below. Any lingering sympathy for Hikaru is obliterated when his final thoughts reveal a chilling, unrepentant desire to murder Ruby. In a poignant moment that fulfills the dark prophecy of the anime's first ending, the star in Aqua's eye finally extinguishes, symbolizing the end of his life's purpose. His ultimate sacrifice may have ended a cycle of violence, but it comes at the devastating cost of his own life, leaving Ruby to face the trauma of losing him all over again.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Aqua's death is confirmed as the star in his eye extinguishes; Hikaru's malice toward Ruby is revealed.

### Characters involved
- Ruby Hoshino — Main
- Hikaru Kamiki — Supporting
- Aquamarine Hoshino — Main

## Spoiler
- level: auto

### Safe teaser
Aqua's long and harrowing quest for vengeance reaches its tragic climax as he executes his final plan: a murder-suicide, pulling his father, Hikaru Kamiki, over a cliff into the churning sea below.

### Spoiler summary
Aqua's long and harrowing quest for vengeance reaches its tragic climax as he executes his final plan: a murder-suicide, pulling his father, Hikaru Kamiki, over a cliff into the churning sea below. Any lingering sympathy for Hikaru is obliterated when his final thoughts reveal a chilling, unrepentant desire to murder Ruby. In a poignant moment that fulfills the dark prophecy of the anime's first ending, the star in Aqua's eye finally extinguishes, symbolizing the end of his life's purpose. His ultimate sacrifice may have ended a cycle of violence, but it comes at the devastating cost of his own life, leaving Ruby to face the trauma of losing him all over again.

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

## See also
- [WebtoonLib — Oshi No Ko #166](/series/oshi-no-ko-e5257b/chapter-166)
- for_series_detail: /llms-series/oshi-no-ko-e5257b

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