Sinopsis
Memempu is captured by a Shibito girl who refers to her as a "rainbow child." What do those words mean? And can Gagumber save her before something terrible happens?!.Sacks&Guns!! Sakugan!! Sakugan Labyrinth Marker 削岩ラビリンスマーカー Sakügan Drilling Labyrinth Marker Сакуган