Awsome but why?

Reincarnated as Killer Sans but a bit different. First getting reborn and then thrown into a trap AU. Too bed the MC is a genius. (Pun intantional) How that works while the creator (AKA me) doesn't understand shit, is a mysterium.

*looks back at MC*
But oh well. Wait I didn't give you that power!

What in the name of the infinite realms is happening?

Read and find out what I can't!