Edmond Byron Sumner was born in 1995 in Beverly Hills, Michigan. He is the son of Ernest and Felicia and has two siblings, Shanequa and Ernest Jr. Sumner played high school ball at Detroit Country Day School. While at DCD, Sumner led the team to a state title, two regional championships and three district championships. He also reached the 1,000-point club in high school. While playing collegiate ball at Xavier University, Sumner studied computer science.