In 2019, Kaito Yashio and Akiho Senomiya are the sole members of the Robotics Club at Central Tanegashima High School in Kyushu, Japan. Kaito is a laid back student and a skilled gamer who is just trying to help Akiho, his childhood friend. She is an energetic positive-thinking girl who yearns to complete the ongoing project of the club: building a functional replica of Gunvarrel, the main robot of a once popular TV series. As they gather new members and try to assemble the robot, Kaito starts stumbling upon secret reports that might reveal a conspiracy of large proportions. Unaware of what he is actually dealing with, Kaito little by little starts discovering clues laid by the mysterious Ko Kimijima.
| Title | Time | |
|---|---|---|
| 1 | Because Gunvarrel is Waiting | 2012-10-12 |
| 2 | Because of Dreams, Hopes and Passion | 2012-10-19 |
| 3 | Tanegashi Accel Impact! | 2012-10-26 |
| 4 | Together, Let's Build a Giant Robot of Justice! | 2012-11-02 |
| 5 | May I Call You 'Brother'? | 2012-11-09 |
| 6 | It's So Sad When a Dream Ends | 2012-11-16 |
| 7 | Thank You Berry Much | 2012-11-23 |
| 8 | I'm Tennouji Nae. Nice to Meet You! | 2012-11-30 |
| 9 | Because It's the Product of Our Blood, Sweat, and Tears | 2012-12-07 |
| 10 | A Robot That Only We Can Build | 2012-12-14 |
| 11 | The Flag Has Been Cleared | 2012-12-21 |
| 12 | Until You Like at Least One Thing | 2013-01-11 |
| 13 | What a Mad World | 2013-01-18 |
| 14 | Listen to My Story Like This... | 2013-01-25 |
| 15 | I'll Show You a Dream | 2013-02-01 |
| 16 | I Love Giant Robots! | 2013-02-08 |
| 17 | As of Today, The Robotics Club is Disbanded! | 2013-02-15 |
| 18 | The True Gunvarrel's In There! | 2013-02-22 |
| 19 | I Should Never Have Had a Dream | 2013-03-01 |
| 20 | Does She Still Love Robots? | 2013-03-08 |
| 21 | Gunvarrel Takeoff! | 2013-03-15 |
| 22 | This is Our Game Now | 2013-03-22 |
