With Sakamoto held captive by the former commander of the Chidori space pirates, Mutsu is forced to relive her past. Meanwhile, Gintoki comes to a startling realization about the woman known as the Razor XO.
Now, if you'll sink to the depths of 
the ocean, all will be as I planned.
كلّ ما تبقّى الآن هو أن تغرقا في أعماق 
المحيط وسيجري كلّ شي كما خُطِّطَ له
Basta irem para o fundo do mar
 para tudo voltar aos trilhos.