Chapter 1: Unexpected Encounter

Mario, Sonic, and their friends embark into an unfamiliar place known as the multiverse. Filled with adventure, fantasy, and suspense. These heroes later team up with Sans and transport themselves into the journey of their lives. This will catalyze the beginning of the biggest battle for the multiverse.

Disclaimer

This story is rated T for teens. It contains blood, violence, and foul language. Also, I do not own Super Mario, Sonic the Hedgehog, Undertale, nor Underverse. They belong to their rightful creators.