Gintoki and Takasugi reveal to each other what they've been doing over the past two years, and decide to go save the one thing they never managed to save in the past: their teacher.
I spent these past two years wandering 
everywhere, trying to save him.
أمضيت السّنتين الماضيتين أجوب 
.كلّ مكان محاولاً إنقاذه
Estuve vagando durante dos años
para salvarlo.
Vaguei por esses dois
anos para tentar salvá-lo.