# WebtoonLib — Medical Return #40

## Series
- title: Medical Return
- slug: medical-return-4e50d7

## Chapter
- number: 40
- release_date: 2025-05-07

### Summary
The intense rivalry between Kim Jihyun and Lee Sangmin escalates into shocking new territory as the plot takes a dark, murderous turn. Following the sudden death of Sangmin's older brother, suspicion immediately falls upon Sangmin himself, whom readers are convinced orchestrated the death after his sinister inquiries about inducing a heart attack with calcium. This development cements Sangmin's character arc from a troubled bully to a full-blown psychopath, with his past cruelty towards animals now seen as a grim foreshadowing of his capacity for murder. While some debate the influence of his abusive family, the consensus is that Sangmin has crossed a lethal line, shifting the story's tone from medical drama to a potential thriller.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- Lee Sangjun dies of a sudden heart attack, suspected to be a murder orchestrated by Lee Sangmin.

## Spoiler
- level: auto

### Safe teaser
The intense rivalry between Kim Jihyun and Lee Sangmin escalates into shocking new territory as the plot takes a dark, murderous turn.

### Spoiler summary
The intense rivalry between Kim Jihyun and Lee Sangmin escalates into shocking new territory as the plot takes a dark, murderous turn. Following the sudden death of Sangmin's older brother, suspicion immediately falls upon Sangmin himself, whom readers are convinced orchestrated the death after his sinister inquiries about inducing a heart attack with calcium. This development cements Sangmin's character arc from a troubled bully to a full-blown psychopath, with his past cruelty towards animals now seen as a grim foreshadowing of his capacity for murder. While some debate the influence of his abusive family, the consensus is that Sangmin has crossed a lethal line, shifting the story's tone from medical drama to a potential thriller.

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

## See also
- [WebtoonLib — Medical Return #40](/series/medical-return-4e50d7/chapter-40)
- for_series_detail: /llms-series/medical-return-4e50d7

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