Since Gin-san was the White Yaksha, a major player in the Joi war, Hijikata orders a stakeout on Odd Jobs in order to find out if he's still connected to the Joi rebels. This stakeout mission lands at the feet of Inspector Yamazaki Sagaru.
Even if he screws it up, 
Yamazaki will owe me for life.
إن أخفق يامازاكي في الأمر فسيظلّ مديناً لي طوال حياته
Y si no resulta, Yamazaki 
será mi esclavo eternamente.
Mesmo que não dê certo, o Yamazaki
 vai ficar me devendo para sempre.