Consumed by negative emotions, Douman is transformed into a giant demon. He now possesses within his body Antenmaru, a demon sealed away over a millennium ago by the desperate efforts of the Ketsuno and Shirino clans. Not even Seimei’s voice can reach to Antenmaru when Gintoki stands before him with his aura-charged wooden sword. How will Gintoki fight the great demon who has returned after a thousand years?!
Don't confuse this with something
that happened twenty years ago!
¡¿Cómo lo confundiste con 
algo de hace veinte años?!
Não confunda com uma coisa que 
aconteceu há mais de vinte anos!