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?!
So if you want to know
about the Benizakura Arc,
Si quieren saber de
 la saga de la Benizakura,
Então, se quiserem saber 
mais do arco de Benizakura,