Jibaku Shounen Hanako-kun (地縛少年花子くん?), alternatively titled Toilet-bound Hanako-kun in the official English release, can be broken into various story arcs as listed below.
Currently, there are sixteen completed arcs, with the seventeenth ongoing arc being the Alteration Arc.
Note: These arcs are unofficially classified and titled, and their beginning, end and chapters/episodes covered is arbitrary and subject to change.
1: Hanako-san of the Toilet Arc[]
This is the story arc concerning the introduction of the main characters, especially Hanako.
| Hanako-san of the Toilet | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 3 | Number of Episodes | 2 |
2: The Misaki Stairs Arc[]
This is the story arc concerning the actions of the Second Mystery, Yako, and how she was stopped.
| The Misaki Stairs | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 5 | Number of Episodes | 3 |
3: The Young Exorcist Arc[]
This is the story arc concerning Minamoto Kou and his idealistic beliefs regarding supernaturals clashing with his older brother, Minamoto Teru's own.
| The Young Exorcist | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 2 | Number of Episodes | N/A |
4: The 4pm Bookstacks Arc[]
This is the story arc concerning the Fifth Mystery, Tsuchigomori, as well as the revelation of Hanako's past as a boy named Yugi Amane.
| The 4pm Bookstacks | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 4 | Number of Episodes | 1 |
5: The Little Mermaid Arc[]
This is the story arc concerned with Yugi Tsukasa's introduction, and further repercussions on Nene's Mermaid Scales curse.
| The 4pm Bookstacks | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 3 | Number of Episodes | 2 |
6: Mitsuba Arc[]
This is the story arc concerned with Mitsuba Sousuke, and how Kou befriends him.
| Mitsuba | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 3 | Number of Episodes | 1 |
7: The Tea Party Arc[]
This is the story arc concerned with the Broadcasting Club's attempts at questioning Nene as to her relationship with Hanako.
| The Tea Party | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 2 | Number of Episodes | 1 |
8: The Three Clock Keepers Arc[]
This is the story arc concerned with the First Mystery, the Three Clock Keepers, as well as the revelation of Nene's short lifespan.
| The Three Clock Keepers | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 7 | Number of Episodes | N/A |
9: The Hell of Mirrors Arc[]
This is the story arc concerned with the Third Mystery, Number 3, and how Tsukasa replaces him with Mitsuba.
| The Hell of Mirrors | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 7 | Number of Episodes | 2 |
10: Summer Lights Arc[]
This is the story arc concerned with how Hanako and Nene join a supernatural Tanabata festival, only for Nene to be sent to a past festival, where she encounters young Amane.
| Summer Lights | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 4 | Number of Episodes | N/A |
11: Picture Perfect Arc[]
This is the story arc concerned with the Fourth Mystery, Shijima Mei, how Nene ended up being trapped within her boundary, and how she escaped from it.
12: Sacrifice of the Grim Reaper Arc[]
This is the story arc concerned with the Sixth Mystery, Shinigami-sama, and how Akane Aoi was sacrificed in place of Nene, with the Severence following after.
13: Red House Arc[]
This is the story arc concerned with the repercussions of the Severance, and how a mysterious Red House reveals far greater mysteries and truths.
| Red House Arc | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 11 | Number of Episodes | N/A |
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14: Far Shore Bound Arc[]
This is the story arc concerned with Nene, Kou, Akane and Teru rescuing Hanako and Aoi from being sent to the Far Shore forever.
15: The Nightlife Arc[]
This is the arc concerned with Kou and Mitsuba's trip to The Aquarium, which goes south very fast.
| The Nightlife Arc | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | 3 | Number of Episodes | N/A |
16: Omen Arc[]
This is the story arc concerned with the School Festival, how the Broadcasting Club ruined it, and the subsequent Trial of the Clock Keepers.
17: Alteration Arc[]
This is the story arc concerned with Kako and Mirai's change to the original timeline, which results in the New Present.
| Alteration Arc | |||
|---|---|---|---|
| Manga | Anime | ||
| Number of Chapters | * | Number of Episodes | N/A |