The ninth and last chapter of the Toaru Majutsu no Heavy na Zashiki-warashi ga Kantan na Satsujinki no Konkatsu Jijou crossover manga was released on October 12, 2015.
- Othinus descends into the world of 'The Circumstances Leading to Waltraute's Marriage' in her normal body to aid Touma.
- Hel is defeated and later saved by Jack Elvan.
- The heroes are returned to their respective worlds.
- Index's Walking Church clothes remain destroyed.
Toaru Majutsu no Index universeEdit
Heavy Object universeEdit
The Zashiki Warashi of Intellectual VillageEdit
- Yukari (Zashiki-Warashi)
- Jinnai Shinobu
A Simple universeEdit
- Anzai Kyousuke
- Higashikawa Mamoru
- Bunny Girl Karen
Killer Princess and the Deep EndEdit
- Nanajou Kyouichirou
The Circumstances Leading to Waltraute's MarriageEdit
- Jack Elvan
The Unexplored Summon://Blood SignEdit
- Imagine Breaker - Kamijou Touma, Level 0
- Gungnir - Odin
- Electromaster (Railgun-variant) - Misaka Mikoto, Level 5
- Waltraute's world (World of Norse mythology)
- Rán's palace
- Academy City
- This marks the debut of Othinus in a non-4koma manga series.
- Despite the events that turned Othinus small having occurred in late November, Touma's uniform is still the summer uniform instead. This would either indicate that the events of the manga occurred a year after the events of Othinus becoming small, or an oversight by the artist.
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