Rainer was born and raised in Detroit, Michigan in 1996. He lives in, works from, and attends school in his hometown. Rainer began formal art education at Cranbrook Upper Schools, is a member of the Birmingham Bloomfield Arts Center (BBAC), and was the recipient of four Scholastics Regional Gold Medals in Painting, the Regional Best of Show, a Regional American Vision Nomination, and a Scholastics National Silver Medal in Painting. Rainer is an illustration major & student at the College for Creative Studies class of 2018. He has exhibited in the Grosse Pointe Art Center, the U245 Gallery, two College for Creative Studies Juried Student Exhibitions, and been featured in DDEAF Magazine.