# WebtoonLib — Toilet-bound Hanako-kun #13

## Series
- title: Toilet-bound Hanako-kun
- slug: toilet-bound-hanako-kun-edbb25

## Chapter
- number: 13
- release_date: 2025-05-29

### Summary
Following the shocking revelation of a traitor among the Seven Mysteries, Yashiro finds herself exploring the boundary of School Mystery No. 5. She is plunged into the past, where she uncovers Hanako's most treasured, and tragic, secret from his time as a human boy named Yugi Amane. It is revealed that his homeroom teacher was none other than a younger Tsuchigomori, and Yashiro witnesses the heartbreaking story of the future her ghostly friend once desperately wished to change.
- summary_source: graph_aggregator
- summary_verification: unverified

### Key events
- The 4:00 PM Bookstacks revelation: Tsuchigomori reveals Hanako's real name was Amane Yugi.

### Characters involved
- Tsuchigomori — character
- Nene Yashiro — character

## Spoiler
- level: auto

### Safe teaser
Following the shocking revelation of a traitor among the Seven Mysteries, Yashiro finds herself exploring the boundary of School Mystery No.

### Spoiler summary
Following the shocking revelation of a traitor among the Seven Mysteries, Yashiro finds herself exploring the boundary of School Mystery No. 5. She is plunged into the past, where she uncovers Hanako's most treasured, and tragic, secret from his time as a human boy named Yugi Amane. It is revealed that his homeroom teacher was none other than a younger Tsuchigomori, and Yashiro witnesses the heartbreaking story of the future her ghostly friend once desperately wished to change.

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

## See also
- [WebtoonLib — Toilet-bound Hanako-kun #13](/series/toilet-bound-hanako-kun-edbb25/chapter-13)
- for_series_detail: /llms-series/toilet-bound-hanako-kun-edbb25

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