Traveling through time to the world of martial arts, you get the God of Killing System. You can get experience by killing people, which can be exchanged for various martial arts secrets, various panaceas, various magical weapons, and various tyrannical bloodlines.
I am the God of Killing and will slaughter the whole world!
PS: I've watched Makoto Shinkai's Your Name. , I really like the idea of the male and female protagonists swapping bodies, and I'll give it a try. The details start from Chapter 9. If you like it, you can check it out.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
