Bakuman. 3rd Season Specials

Rakko 9, an abandoned experimental otter, declares vengeance on humanity, forcing Rakko 11 into a battle of absurd techniques, impossible materials, and escalating melodrama. Rie and Naho race to intervene before the feud between numbered otters becomes a catastrophe.

Elsewhere, the conflict between Schwarz, a demon of darkness, and Weiss, a demon of light, erupts through the energetic opening song of Reversi, capturing the grand rivalry imagined by the creators behind the fictional series.