# WebtoonLib — Romance 101 #129

## Series
- title: Romance 101
- slug: romance-101-df5621

## Chapter
- number: 129
- release_date: 2025-03-05

### Summary
Building on the recent revelation that Yuyeon and Jaehyun are brothers with different last names due to their parents' divorce, the current chapter delves into a poignant flashback focused on Yuyeon's relationship with his younger sister, Yubyeol. The narrative explores a difficult moment from their childhood when Yuyeon shielded Yubyeol from their parents' fighting by taking her to an internet cafe. In a heartwarming display of brotherly care, he created a game character specifically for her and allowed her to name it. This event provides the origin story for a character nicknamed "sharky" by readers, explaining a previously mysterious detail. The flashback serves to deepen Yuyeon's characterization as a protective and kind older brother, resonating emotionally with the audience and adding further context to the siblings' family history.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Flashback showing Yuyeon protecting Yubyeol during childhood and creating the 'sharky' game character.

## Spoiler
- level: auto

### Safe teaser
Building on the recent revelation that Yuyeon and Jaehyun are brothers with different last names due to their parents' divorce, the current chapter delves into a poignant flashback focused on Yuyeon's relationship with his younger sister, Yubyeol.

### Spoiler summary
Building on the recent revelation that Yuyeon and Jaehyun are brothers with different last names due to their parents' divorce, the current chapter delves into a poignant flashback focused on Yuyeon's relationship with his younger sister, Yubyeol. The narrative explores a difficult moment from their childhood when Yuyeon shielded Yubyeol from their parents' fighting by taking her to an internet cafe. In a heartwarming display of brotherly care, he created a game character specifically for her and allowed her to name it. This event provides the origin story for a character nicknamed "sharky" by readers, explaining a previously mysterious detail. The flashback serves to deepen Yuyeon's characterization as a protective and kind older brother, resonating emotionally with the audience and adding further context to the siblings' family history.

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

## See also
- [WebtoonLib — Romance 101 #129](/series/romance-101-df5621/chapter-129)
- for_series_detail: /llms-series/romance-101-df5621

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