Shinichi is a teenager with short blackish-brown hair swept back with brown eyes. He wears the Satsukiyama Academy school uniform consisting of a brown double-breasted jacket, a white shirt loosely collared with a black necktie, and black pants with matching shoes.
Outside of his school uniform, Shinichi wears a long-sleeved tartan shirt over a black shirt with pants.
Shinichi is Yuuma Shindou's childhood friend. He is aware of and supports the latter's relationship with Tamaki Minase. He plans to go to college after obtaining his high school diploma.
Although his acts and attitude seem somewhat brash, Shinichi will openly show his concern for others when worried about them. It is also shown that previously Shinichi had a girlfriend whom he recently broke up with. There are rumors about him having a crush on Erina Yuzuki.