Toaru Majutsu no Heavy na Zashiki-warashi ga Kantan na Satsujinki no Konkatsu Jijou (manga)

The Toaru Majutsu no Heavy na Zashiki-warashi ga Kantan na Satsujinki no Konkatsu Jijou (とある魔術のへヴィーな座敷童が簡単な殺人妃の婚活事情) manga is an adaptation of the crossover novel by Kamachi Kazuma of the same name, and is published in Monthly Shōnen Gangan. It is the sixth manga based off the Toaru Majutsu no Index universe and the 4th one to be published in Monthly Shōnen Gangan. The structure of the manga was done by Nishino Ryuu and was drawn by Fusemachi Hajime. Serialization began on February 12, 2015.

Background
The crossover novel was part of the 10 Year Anniversary Celebration of Kamachi Kazuma's work. Part of this anniversary was the release of animated short featuring characters from the author's work. Many of the characters appearing in the animated short would later reappear in the novel as well, and in turn in the manga, making the short a pseudo-trailer for the novel and manga.

The manga would mark the first time many characters from novel series and stories, apart from Toaru Majutsu no Index and Heavy Object, would be appearing in manga form.

Chapters Not Yet in Volume Format

 * 1. An Otherworldly Battle that Begins with Kamijou Touma's Usual Misfortune (上条当麻のいつも不幸から始まる異世界バトル)
 * 2. Grainy Ground and the Search to Solve the Mystery of the Heavy Dungeon (木目の大地の謎を解くへヴィーなダンジョン探索)
 * 3. When Men and Women from Different Worlds Travel Together, Tragedy and Comedy Intersect (悲劇と喜劇が交差すろ男女一緒の異世界旅行)
 * 4. An Absurd Lost Item Under Attack From a "Translucent Robot" (「半透明のロボット」に襲われる不条理な落とし物拾い)
 * 5. The Deep Otherworldly Circumstances Produced by the Justice of God (神の理が作り出すディープな異世界事情)
 * 6. The Gods' Gazes Upon the Girl Who Wishes for Salvation and the Protagonists' Decision (罪人を救おうとするヘルとヘルを救おうとする主役達の試練)
 * 7. The Hel Trying to Save the Sinners and the Ordeal of the Protagonists Trying to Save Hel (救済を願う少女への神々の眼差しと主人公達の決断)
 * 8. The Conflict in which Gods, Arch-Enemies, Heroes and an Unprecedented Monster Fight Each Other (神と宿敵と英雄と前人未踏の怪物がせめぎ合う闘争)
 * Last. The Circumstances of the Closure Which Marks the End of the Battle to Bring About A Certain World's Destruction (とある世界の破滅をもたらす戦いが終わりを告げる終幕事情)