Linebarrels of Iron

> "*3 Years ago at the Maritame Town’s Construction Site which we visited for our social studies class, that incident occurred*"
> ― Kouichi giving the introduction
>
>

Linebarrels of Iron was a Manga series written by Eiichi Shimizu. The Manga ran for 10 years and had since written its last episode on April 19th of 2015.

## Plot

The Linebarrels of Iron story takes place in an alternate universe in the year 2019, centering on a junior-high student named Kouichi Hayase who escaped his daily life of being ridiculed as a child by daydreaming about being a hero. His life is forever changed during a class trip in 2016 when an artificial satellite falls from orbit. Due to this "accident", Kouichi is left in a coma for half a year, and upon awakening, found himself with strange powers, including superhuman strength. Three years later, a mysterious robot called "Linebarrel" appears before him. It is revealed that the accident from three years ago was actually caused by the Machina robot Linebarrel and that this turned him into a "Factor", which is the name given to Machina pilots. This leads him to encounter Emi Kizaki, a mysterious amnesiac girl whose unknown past seems to be related to Linebarrel. He joins her in fighting for JUDA, the world's largest medical equipment maker, which happens to secretly own several other Machina robots.

### ***Machinas and Armas***

There are two kinds of robots in Linebarrels of Iron: Armas and Machinas. The series primarily focuses on Machinas, robots that are not manufactured by humans and are powered by nanobots called D-S.O.I.L., also known as Drexler S.O.I.L., which also enable them to regenerate after being damaged. Since D-S.O.I.L. is like artificial muscle for the Machinas, they tend to "bleed" when they are damaged.

Machinas are also considered to have their own consciousness, as only their chosen "Factor" can pilot one, and should the Factor be killed, it will go on to find a replacement. The overlying reason for this is that all Machinas are incapable of intentionally killing another human on their own volition; they need a "Factor" i.e. another human, who would be the one who "kills". The Factor need not be actively piloting the Machina for it to kill, as revealed when a rampaging Machina called Apparition was brought down by JUDA and the then-unaligned Hayase and it was found that the (dead) Factor was drugged and restrained inside it. Should it kill someone without a Factor's "assistance", usually by accident, a Machina has been known to resuscitate and heal the person by injecting their D-S.O.I.L nanobots into them, which in turn makes the person a Factor. This is the case for Factor Reiji Moritsugu. In the case of Kouichi Hayase, then-Linebarrel pilot Emi Kizaki begged Linebarrel to heal him, which turned him into a Factor, at the expense of making Emi a less desirable Factor to Linebarrel ("It" does not want Emi to fight). In the anime, it was revealed that Hayase's friend Hideaki Yajima was also resurrected by the Machina that caused his death.

In addition, a Machina can go into Overdrive, or a state of rampage which exponentially increases its capabilities, when its Factor's emotions go out of control. Machinas can also be stored in another dimension and appear before its Factor any time, excluding the Linebarrel. However, they cannot teleport if the Factor is inside it. Since there are only a limited amount of Machinas available and their true origins are unknown, humans created Armas, which are crude imitations of Machinas and do not have D-S.O.I.L. They can be piloted by anyone, but they cannot regenerate, nor they can perform at the level of true Machinas.

### ***Machina-Humans***

A concept unveiled in the manga and anime. As the story unfolds it is learned that there exists a parallel universe adjacent to our own, where humanity reached incredible peaks of technology at the cost of their very nature, to the point where the human species as a whole became extinct after merging its own collective consciousness with the machines they created. Similar to a hive mind, this virtual collective unity threw away individuality and any sort of vestige of human feelings for the sake of power, becoming one cold, ruthless mechanical being bent on a continuous, endless expansion of itself. Referred to as "Central", this hive mind acts in a way reminiscent of the machines from the Matrix trilogy, even having its own enforcers to hunt down and destroy whoever is perceived as a hindrance.

## Chapters

### Kanzenhan Vol.1

* Chapter 1
* Chapter 2
* Chapter 3
* Chapter 4
* Chapter 5
* Chapter 6
* Chapter 7

### Kanzenhan Vol.2

* Chapter 8
* Chapter 9
* Chapter 10
* Chapter 11
* Chapter 12
* Chapter 13
* Chapter 14

### Kanzenhan Vol.3

* Chapter 15
* Chapter 16
* Chapter 17
* Chapter 18
* Chapter 19
* Chapter 20

### Kanzenhan Vol.4

* Chapter 21
* Chapter 22
* Chapter 23
* Chapter 24
* Chapter 25
* Chapter 26

### Kanzenhan Vol.5

* Chapter 27
* Chapter 28
* Chapter 29
* Chapter 30
* Chapter 31
* Chapter 32

### Kanzenhan Vol.6

* Chapter 33
* Chapter 34
* Chapter 35
* Chapter 36
* Chapter 37
* Chapter 38

### Kanzenhan Vol.7

* Chapter 39
* Chapter 40
* Chapter 41
* Chapter 42
* Chapter 43
* Chapter 44

### Kanzenhan Vol.8

* Chapter 45
* Chapter 46
* Chapter 47
* Chapter 48
* Chapter 49
* Chapter 50

### Kanzenhan Vol.9

* Chapter 51
* Chapter 52
* Chapter 53
* Chapter 54
* Chapter 55
* Chapter 56
* Chapter 57

### Kanzenhan Vol.10

* Chapter 58
* Chapter 59
* Chapter 60
* Chapter 61
* Chapter 62
* Chapter 63
* Chapter 64

### Kanzenhan Vol.11

* Chapter 65
* Chapter 66
* Chapter 67
* Chapter 68
* Chapter 69
* Chapter 70
* Chapter 71

### Kanzenhan Vol.12

* Chapter 72
* Chapter 73
* Chapter 74
* Chapter 75
* Chapter 76
* Chapter 77
* Chapter 78

### Kanzenhan Vol.13

* Chapter 79
* Chapter 80
* Chapter 81
* Chapter 82
* Chapter 83
* Chapter 84
* Chapter 85
* Chapter 86

### Kanzenhan Vol.14

* Chapter 87
* Chapter 88
* Chapter 89
* Chapter 90
* Chapter 91
* Chapter 92
* Chapter 93

### Kanzenhan Vol.15

* Chapter 94
* Chapter 95
* Chapter 96
* Chapter 97
* Chapter 98
* Chapter 99
* Chapter 100
* Chapter 101
* Chapter 102

### Kanzenhan Vol.16

* Chapter 103
* Chapter 104
* Chapter 105
* Chapter 106
* Chapter 107
* Chapter 108
* Chapter 109
* Chapter 110

### Kanzenhan Vol.17

* Chapter 111
* Chapter 112
* Chapter 113
* Chapter 114
* Chapter 115
* Chapter 116
* Chapter 117
* Chapter 118

### Kanzenhan Vol.18

* Chapter 119
* Chapter 120
* Chapter 121
* Chapter 122

## Editions

### Japanese Editions

* Tankōbon
	+ Vol.0 ISBN 978-4-25-323160-2
	+ Vol.1 ISBN 978-4-25-323161-9
	+ Vol.2 ISBN 978-4-25-323162-6
	+ Vol.3 ISBN 978-4-25-323163-3
	+ Vol.4 ISBN 978-4-25-323164-0
	+ Vol.5 ISBN 978-4-25-323165-7
	+ Vol.6 ISBN 978-4-25-323166-4
	+ Vol.7 ISBN 978-4-25-323167-1
	+ Vol.8 ISBN 978-4-25-323168-8
	+ Vol.9 ISBN 978-4-25-23169-5
	+ Vol.10 ISBN 978-4-25-323170-1
	+ Vol.11 ISBN 978-4-25-323411-5
	+ Vol.12 ISBN 978-4-25-323412-2
	+ Vol. 13 ISBN 978-4-25-323413-9
	+ Vol. 14 ISBN 978-4-25-323414-6
	+ Vol. 15 ISBN 978-4-25-323415-3
	+ Vol. 16 ISBN 978-4-25-323416-0
	+ Vol. 17 ISBN 978-4-25-323417-7
	+ Vol. 18 ISBN 978-4-25-323418-4
	+ Vol. 19 ISBN 978-4-25-323419-1
	+ Vol. 20 ISBN 978-4-25-323420-7
	+ Vol. 21 ISBN 978-4-25-323421-4
	+ Vol. 22 ISBN 978-4-25-323422-1
	+ Vol. 23 ISBN 978-4-25-323423-8
	+ Vol. 24 ISBN 978-4-25-323424-5
	+ Vol. 25 ISBN 978-4-25-323425-2
* Kanzenhan
	+ Vol.1 ISBN 978-4-86-468530-6
	+ Vol.2 ISBN 978-4-86-468531-3
	+ Vol.3 ISBN 978-4-86-468539-9
	+ Vol.4 ISBN 978-4-86-468546-7
	+ Vol.5 ISBN 978-4-86-468558-0
	+ Vol.6 ISBN 978-4-86-468560-3
	+ Vol.7 ISBN 978-4-86-468573-3
	+ Vol.8 ISBN 978-4-86-468576-4
	+ Vol.9 ISBN 978-4-86-468583-2
	+ Vol.10 ISBN 978-4-86-468586-3
	+ Vol.11 ISBN 978-4-86-468593-1
	+ Vol.12 ISBN 978-4-86-468598-6
	+ Vol. 13 ISBN 978-4-86-468605-1
	+ Vol. 14 ISBN 978-4-86-468610-5
	+ Vol. 15 ISBN 978-4-86-468612-9
	+ Vol. 16 ISBN 978-4-86-468614-3
	+ Vol. 17 ISBN 978-4-86-468617-4
	+ Vol. 18 ISBN 978-4-86-468620-4