Gagamaru is a very tall and long young man with long black hair kept in a bun that was dyed silver at some point. At Blue Lock, Gagamaru wears the standard-issued body suit (black with gray stripes) and tracksuit. During the First Selection, he wore Team Z's blue #6 jersey and wears Team Z's gray-capped cleats. During Second Selection, he wore Team Red's #88 jersey and that later switched to Team C's white and blue #88 jersey during the Third Selection.