Heart Gear manga volume 5 features story and art by Tsuyoshi Takaki.

Roue continues her journey to Heaven Land under the protection of Chrome and Rock, but her very existence has put Heaven Land in a difficult position. Unable to reach an agreement, the Heaven Land administrators dispatch two teams to intercept the girl - the Donkeys, who they've assigned to welcome her, and the Elephants, who have been ordered to eliminate her and her comrades. The race is on to find out which group will decide Roue's fate!