So I'm a Spider, So What? Vol. 8 (manga)

The head honcho. The last boss. The final encounter...
At long last, it's time for the finale between me and my greatest rival, earth dragon Araba. I trained like a mad spider. I planned for every outcome. And in the end, all that's left is-the execution. When this showdown's over and done with, only one of us will remain...