Seasons & episodes

The enemy invasion has begun and it’s up to Kouichi and his team to defend the earth. Kouichi and his Linebarrel take it upon themselves to drive the invaders into the space-time continuum and back into their respective dimension. As Kouichi and his Linebarrel blast off into space, Kizaki initiates a surprise attack against the infiltrators…

Anywhere else, Hayase Kouichi is just a normal junior high school student. However, he’s become a part of the Linebarrel, made and lost friends, and discovered the thing that he wants to protect the most. And just as Kouichi reflects upon his life up to now, Linebarrel decides to finally show its true and ultimate form!