Denki Kaminari The Hidden Slayer

Denki Kaminari one day thought about getting a sword to use with his hero costume to solve his attack range problem. When he asked for one, the only one that the support course could think of to match his needs is a Nichiren Sword. When Kaminari claimed one, he then realized he's been dreaming about someone with the exact same sword. The more he looks into the past and his ancestry, he finds out more about himself, and what the future has in store for him.

This book takes place after the reverse slayer. If you guys haven't read that yet I highly recommend. I'll work on this after I finish the reverse slayer.