# WebtoonLib — Romance 101 #128

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

## Chapter
- number: 128
- release_date: 2025-03-05

### Summary
The latest chapter has resolved a significant and long-standing point of confusion for the audience regarding the familial connection between the two primary male leads, Yuyeon Na and Jaehyun Shin. Reader comments indicate that previous ambiguity, potentially exacerbated by translation inconsistencies, led many to question whether the two were siblings or cousins. The narrative has now definitively established that they are siblings. This clarification explains that their different last names and the general lack of awareness about their relationship among other characters is a result of their parents' divorce. This key piece of backstory provides context for their dynamic and resolves related narrative questions, such as the name of Yuyeon's sister, Yubyeol, finally clearing up a detail that had puzzled readers for some time.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Confirmation that Yuyeon and Jaehyun are brothers with different surnames due to their parents' divorce.

## Spoiler
- level: auto

### Safe teaser
The latest chapter has resolved a significant and long-standing point of confusion for the audience regarding the familial connection between the two primary male leads, Yuyeon Na and Jaehyun Shin.

### Spoiler summary
The latest chapter has resolved a significant and long-standing point of confusion for the audience regarding the familial connection between the two primary male leads, Yuyeon Na and Jaehyun Shin. Reader comments indicate that previous ambiguity, potentially exacerbated by translation inconsistencies, led many to question whether the two were siblings or cousins. The narrative has now definitively established that they are siblings. This clarification explains that their different last names and the general lack of awareness about their relationship among other characters is a result of their parents' divorce. This key piece of backstory provides context for their dynamic and resolves related narrative questions, such as the name of Yuyeon's sister, Yubyeol, finally clearing up a detail that had puzzled readers for some time.

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

## See also
- [WebtoonLib — Romance 101 #128](/series/romance-101-df5621/chapter-128)
- for_series_detail: /llms-series/romance-101-df5621

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