# WebtoonLib — Oshi No Ko #129

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

## Chapter
- number: 129
- release_date: 2025-05-29

### Summary
The narrative shifts focus to the controversial dynamic between the Hoshino twins, exploring their bond through the lens of their past lives. A powerful flashback reveals a painful memory where Dr. Goro made a thoughtless comment about his terminally ill patient Sarina's hair. Wracked with guilt over this newly-remembered mistake, Aqua's stoic composure breaks, and he vows to indulge Ruby's every wish to atone. This dramatic shift sets up a complicated and tense future, as Aqua's actions stem from protective regret while he remains oblivious to the true, romantic nature of Ruby's feelings for him.
- summary_source: graph_aggregator
- summary_verification: unverified

### Characters involved
- Sarina Tendouji — Supporting
- Gorou Amamiya — Supporting
- Ruby Hoshino — Main
- Aquamarine Hoshino — Main

## Spoiler
- level: auto

### Safe teaser
The narrative shifts focus to the controversial dynamic between the Hoshino twins, exploring their bond through the lens of their past lives.

### Spoiler summary
The narrative shifts focus to the controversial dynamic between the Hoshino twins, exploring their bond through the lens of their past lives. A powerful flashback reveals a painful memory where Dr. Goro made a thoughtless comment about his terminally ill patient Sarina's hair. Wracked with guilt over this newly-remembered mistake, Aqua's stoic composure breaks, and he vows to indulge Ruby's every wish to atone. This dramatic shift sets up a complicated and tense future, as Aqua's actions stem from protective regret while he remains oblivious to the true, romantic nature of Ruby's feelings for him.

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

## See also
- [WebtoonLib — Oshi No Ko #129](/series/oshi-no-ko-e5257b/chapter-129)
- for_series_detail: /llms-series/oshi-no-ko-e5257b

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