Chapter 1: Why Me

How did this happen to me? Just one week ago, I was a regular high school otaku in Japan. Then, I'm transported to some martial arts world in the body of someone with the same name and...  Sorry. I should introduce myself. My name is Watanabe Kaito, but you can call me Kai. Everyone does. I'm 16, blood type AB. I'm 1 m 80 cm tall, with black hair and dark brown eyes. I'm narrating this in my head because, in all honesty, this seems like the plot to a bad light novel. That sounds crazy. Maybe it is crazy, but with everything that's happened recently, I think I'm allowed to go a little nuts. For you to understand, I'm going to have to go back to one week ago, when I was living an uneventful life in Tokyo.

1 Week Earlier

"Kai! Get your ass out of bed!"

I woke up like I always do: Getting screamed at by my childhood friend, Sato Airi. Airi is 16, blood type B, 1 m 60 cm tall, and I'm pretty sure her sizes are 32-24-34. If you meet her, don't tell her I said that. She had light brown hair, about shoulder length, and piercing blue eyes. Airi had been my neighbor for as long as I could remember, which meant she had no problem charging into my room and demanding I get ready for school. I sat up, grinning.

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"You're pretty when you're angry."

Airi looked at me and rolled her eyes.

"Cut the bullshit. School starts in 20 minutes, and you aren't ready. 5 minutes."

This exchange was pretty normal. Airi charged in and woke me, I complemented her about something to try to get on her good side, and she told me how long I had to get ready. Normally it was under 10 minutes. I jumped out of bed, threw some clothes, brushed my teeth, and walked out. The whole affair took about 3 minutes. That's when things got weird. As I walked out, I suddenly felt weird. Then I heard it.

"Bari Bari."

Why the hell did it sound like I was standing near a live wire?  Next thing I know, I'm no longer standing in modern Japan.