# WebtoonLib — Oshi No Ko #137

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

## Chapter
- number: 137
- release_date: 2025-05-29

### Summary
In a devastating and calculated move, Kana Arima confronts Ruby, weaponizing her own jealousy and resentment to help Ruby perfect her role as Ai. Channeling the dark, confessional rap of a famous idol anthem, Kana unleashes a brutal tirade, calling Ruby out for her past selfishness and for treating her B-Komachi bandmates as disposable tools on her path to revenge. This painful confrontation is a self-sacrificial gambit designed to shatter Ruby's composure and force her to access the complex, hidden emotions of Ai Hoshino, but it comes at the terrible cost of their friendship, leaving both girls—and readers—reeling from the emotional fallout.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Kana Arima delivers a brutal verbal assault on Ruby to force her to tap into Ai's darker emotions for the film.

### Characters involved
- Ruby Hoshino — Main
- Kana Arima — Main

## Spoiler
- level: auto

### Safe teaser
In a devastating and calculated move, Kana Arima confronts Ruby, weaponizing her own jealousy and resentment to help Ruby perfect her role as Ai.

### Spoiler summary
In a devastating and calculated move, Kana Arima confronts Ruby, weaponizing her own jealousy and resentment to help Ruby perfect her role as Ai. Channeling the dark, confessional rap of a famous idol anthem, Kana unleashes a brutal tirade, calling Ruby out for her past selfishness and for treating her B-Komachi bandmates as disposable tools on her path to revenge. This painful confrontation is a self-sacrificial gambit designed to shatter Ruby's composure and force her to access the complex, hidden emotions of Ai Hoshino, but it comes at the terrible cost of their friendship, leaving both girls—and readers—reeling from the emotional fallout.

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

## See also
- [WebtoonLib — Oshi No Ko #137](/series/oshi-no-ko-e5257b/chapter-137)
- for_series_detail: /llms-series/oshi-no-ko-e5257b

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