During World War II, a maniac fighting for immortality was killed by artillery bombing and traveled through Naruto to rule the world:
Well, as for the system, normally there was no Naruto during World War II, but time travel caused time and space confusion. Although it is nonsense to say this, time travel itself is very nonsense, la la la
This book has no limits and is quite dark, so novice readers should not read it.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.