Triple collaboration between BUMP OF CHICKEN x TRIGGER x Transformers!! We produced a special movie commemorating the 40th anniversary of "Transformers" with TRIGGER. Satoshi Amemiya, director of the movie version of Gridman Universe, is in charge of direction, storyboarding, directing, and animation direction. In this work, due to the staff's commitment, we intentionally did not use any 3DCG and expressed the world of "Transformers" with all cuts and hand-drawn pictures by the animators.