Centers around Kouichi Hayase, a fourteen-year-old boy living a mediocre life, until an accident turns him into the pilot of a gigantic robot called "Linebarrel" and leads him to encounter a mysterious girl.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Iron and the Boy | 2008-10-04 | 25 min |
| Season 1 | Episode 2 | Justice Barreling Along | 2008-10-11 | 25 min |
| Season 1 | Episode 3 | Azure Terror | 2008-10-17 | 25 min |
| Season 1 | Episode 4 | The Price of Justice | 2008-10-25 | 25 min |
| Season 1 | Episode 5 | Guidepost to Tomorrow | 2008-11-01 | 25 min |
| Season 1 | Episode 6 | A Radiant Night | 2008-11-08 | 25 min |
| Season 1 | Episode 7 | The Worst After-School Hours Ever | 2008-11-15 | 25 min |
| Season 1 | Episode 8 | Playful Devils | 2008-11-22 | 25 min |
| Season 1 | Episode 9 | The Black Chamber | 2008-11-29 | 25 min |
| Season 1 | Episode 10 | Over Drive | 2008-12-06 | 25 min |
| Season 1 | Episode 11 | Super Nova | 2008-12-13 | 25 min |
| Season 1 | Episode 12 | From the Tropics with Love | 2008-12-20 | 25 min |
| Season 1 | Episode 13 | Black Executioner | 2008-12-27 | 25 min |
| Season 1 | Episode 14 | Shed is Blood, Lost are Tears | 2009-01-10 | 25 min |
| Season 1 | Episode 15 | Vector | 2009-01-17 | 25 min |
| Season 1 | Episode 16 | Judgment at Dusk | 2009-01-24 | 25 min |
| Season 1 | Episode 17 | The Mechanical Curse | 2009-01-31 | 25 min |
| Season 1 | Episode 18 | Memento Mori | 2009-02-07 | 25 min |
| Season 1 | Episode 19 | Light Reaches, Shadow is Uncovered | 2009-02-14 | 25 min |
| Season 1 | Episode 20 | Man of Destiny | 2009-02-21 | 25 min |
| Season 1 | Episode 21 | Wings of Madness | 2009-02-28 | 25 min |
| Season 1 | Episode 22 | That Which Devours Demons | 2009-03-07 | 25 min |
| Season 1 | Episode 23 | The Way of Life Determined by the Way of Death | 2009-03-14 | 25 min |
| Season 1 | Episode 24 | Flowers of Steel | 2009-03-21 | 25 min |
