The Standout Prodigy Sūn

One dimension, two dimensions, three dimensions, seven. You are a child genius who theorized how to access the seventh dimension. In your spare time you compose piano music in the traditional country music genre. Even though you're smart, you're still a kid and enjoy movies about banshees and speed walking. You do part time work for The Umbra Confederacy because they offered you a near unlimited supply of clam chowder.