# WebtoonLib — Don't Build My Hopes Up #29

## Series
- title: Don't Build My Hopes Up
- slug: dont-build-my-hopes-up-f02e21

## Chapter
- number: 29
- release_date: 2025-03-09

### Summary
The chapter introduces a new source of conflict with the appearance of Yeonu's younger brother, Seonu, whose attractive appearance immediately captivates readers and sparks the central conflict. The core drama ignites when Gyu-yeong confesses to Yeonu that he previously had a crush on Seonu. This admission is directly linked to Gyu-yeong's established vulnerability and his tendency to "fall for anyone who's kind to him," a trait that now complicates their relationship. The confession sparks intense, mutual jealousy, with Yeonu exhibiting a mix of impressive emotional control and subtle possessiveness, treating Gyu-yeong like a child by warning him not to "talk to strangers." Despite the new insecurity, their dynamic is also filled with sweet and intimate moments, including public kisses that continue to stoke reader anxiety about their secret being discovered. This emotional rollercoaster is mirrored in the evolving title card, where the symbolic sticky note now features hand-drawn hearts and emojis, chronicling their journey. The revelation also prompts reader speculation about Gyu-yeong's romantic history, questioning if Seonu was his one and only prior crush.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Gyu-yeong reveals he previously had a crush on Yeonu's brother, Seonu, sparking mutual jealousy.

## Spoiler
- level: auto

### Safe teaser
The chapter introduces a new source of conflict with the appearance of Yeonu's younger brother, Seonu, whose attractive appearance immediately captivates readers and sparks the central conflict.

### Spoiler summary
The chapter introduces a new source of conflict with the appearance of Yeonu's younger brother, Seonu, whose attractive appearance immediately captivates readers and sparks the central conflict. The core drama ignites when Gyu-yeong confesses to Yeonu that he previously had a crush on Seonu. This admission is directly linked to Gyu-yeong's established vulnerability and his tendency to "fall for anyone who's kind to him," a trait that now complicates their relationship. The confession sparks intense, mutual jealousy, with Yeonu exhibiting a mix of impressive emotional control and subtle possessiveness, treating Gyu-yeong like a child by warning him not to "talk to strangers." Despite the new insecurity, their dynamic is also filled with sweet and intimate moments, including public kisses that continue to stoke reader anxiety about their secret being discovered. This emotional rollercoaster is mirrored in the evolving title card, where the symbolic sticky note now features hand-drawn hearts and emojis, chronicling their journey. The revelation also prompts reader speculation about Gyu-yeong's romantic history, questioning if Seonu was his one and only prior crush.

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

## See also
- [WebtoonLib — Don't Build My Hopes Up #29](/series/dont-build-my-hopes-up-f02e21/chapter-29)
- for_series_detail: /llms-series/dont-build-my-hopes-up-f02e21

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