When the team gets assigned to infiltrade an illegal chakra-trading ring, Lee goes to Sai for advice on how to blend in with the crowd. A nefarious neer-do-well keeps leaving the village bathrooms a filthy disgusting mess, so Tsunade appoints Lee's team as guards.
And so, Sai's strange training continued.
Y así, continuó el extraño 
entrenamiento de Sai.
Y así, continuaron con el 
extraño entrenamiento de Sai.
E assim, o treino do Sai continuou.