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.
You have to grow stronger than 
me using your own sword.
.عليك أن تصبح أقوى منّي باستعمال سيفك الخاصّ
Tú mismo debes fortalecer tu espada.
Você precisa se tornar mais forte
que eu, pela sua própria espada.