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?!
I recommend volumes 11
and 12 of the manga.
les recomendamos los volúmenes 
11 y 12 del manga.
recomendo os volumes 11 e 12 do mangá.