Sei Iori is a Gunpla builder whose family runs a hobby shop in a small town. He aspires to be a Gunpla Battle champion like his father, but despite his exceptional building skills, he lacks the combat abilities to compete with other contestants. Then one day, he meets a mysterious boy named Reiji, who helps him improve his confidence in participating in Gunpla Battles. Together, Sei and Reiji battle their way to the 7th Gunpla Battle World Tournament.
| Title | Time | |
|---|---|---|
| 1 | Sei and Reiji | 2013-10-07 |
| 2 | The Crimson Comet | 2013-10-14 |
| 3 | Full Package | 2013-10-21 |
| 4 | Gunpla Idol Kirara | 2013-10-28 |
| 5 | The Strongest Builder | 2013-11-04 |
| 6 | A Reason to Battle | 2013-11-11 |
| 7 | World-Level Ability | 2013-11-18 |
| 8 | Encounters of Fighters | 2013-11-25 |
| 9 | Wings of Imagination | 2013-12-02 |
| 10 | The World Tournament Begins | 2013-12-09 |
| 11 | Battle Royal | 2013-12-16 |
| 12 | Discharge | 2013-12-23 |
| 13 | Battle Weapon | 2014-01-06 |
| 14 | Codename: C | 2014-01-13 |
| 15 | Fighter's Radiance | 2014-01-20 |
| 16 | Dad, We Meet Again? | 2014-01-27 |
| 17 | Model of the Heart | 2014-02-03 |
| 18 | Bloodhounds | 2014-02-10 |
| 19 | Astray's Blade | 2014-02-17 |
| 20 | Aila's Betrayal | 2014-02-24 |
| 21 | Amid the Glittering Particles | 2014-03-03 |
| 22 | Meijin vs. Meijin | 2014-03-10 |
| 23 | Gunpla Eve | 2014-03-17 |
| 24 | Dark Matter | 2014-03-24 |
| 25 | Promise | 2014-03-31 |
