The monkey, aka "Jugem Jugem... (abbreviated) Runny Diarrhea," has grown close to Kyubei.  However, their time together did not last.  The Shogun family ordered that the Yagyu return Runny Diarrhea.  The monkey escapes from the Shogun family to see Kyubei again.  Kyubei and the other Yagyu members are forced to continue a desperate and fruitless search for Runny Diarrhea...
And its name is...
Y su nombre es...
E seu nome é...