Jyugo and the gang are killing time teasing the new guard, Seitarou.
One day, a new inmate is sent to Cell 13. Inmate Number 99, Tsukumo.
He looks and acts like a ninja! Uno, Niko, and Rock are excited to see the real thing.
But as a Japanese, Jyugo does not believe him. 
To convince Jyugo that he’s a true ninja, Tsukumo challenges Jyugo to see who can escape from prison...
their activity level will drop by 50%.
.%سينزل مستوى نشاطهم بنسبة 50
sus niveles de actividad
bajarán en un 50 %.
sus niveles de actividad 
bajarán un 50 %.
le loro attività diminuiranno del 50%.
o nível de atividade deles cai para 50%.
их уровень активности упадёт вдвое.