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.
They've started to understand 
how to use the immortal blood.
.بدؤوا يعرفون كيف يستعملون الدّم الخالد
Comenzaron a comprender
cómo funciona la sangre inmortal.
Eles começaram a compreender
como manipular o sangue imortal.