During Kinji's absence, the dungeons have become more dangerous. In order to access the ruins inside, Kinji must find a way to push through the dungeons quickly, but it becomes quickly apparent that no amount of training will help.
Ninomiya would certainly have no chance...
...ومن المؤكد أنّ نينوميا-سان لن يملك فرصة
Von dir ganz zu schweigen, Ninomiya.
Ninomiya no podría contra ellos…