Sans and Papyrus were just two normal teenagers trying to find their way in life. That was, until Sans decided to take them both to Mt. Ebott, where both fell into the world of monsters. With only each other to count on, the two traverse the realm in hopes of getting safely back to their world. If, that is, they can make it with their souls intact.. A non-canon prequel to Undertale

In the process of solving his latest case, Phoenix becomes acquainted with a spirit called Sissel. But when another puzzling murder occurs, the two of them must join forces if they hope to prevent further tragedy. And who are these odd foreigners?

Part 3: Phoenix and Apollo have to unravel the mystery surrounding a tragedy that happened in prison four years ago to protect Maya from yet another plot on her life.