|Height||179 cm (5'10")|
Shin has black, messy, wavy hair that is tipped with a maroon red color. He has red eyes, and wears black and red collars on his neck. His clothing usually consists of red and black color combinations and patterns. He wears long pants, the right leg with a red legging and the left coated with a black legging. He wears a short, mid-chest black jacket with a tan hood. His outfits also include a diner waiter with an apron and a tie. All outfits represent his route of hearts in the game play and all consist of the main colors, red and black.
He is somewhat reserved, and mysterious. It is found out that he is Heroine's boyfriend of three months.
Shin is a 3rd year high-schooler and is currently studying very hard to get into a university. He enjoys playing card games and is in the track and field club.
Shin's symbolic route in the game is the 'Heart'.
It is stated in a flashback of Heroine that Shin has killed a man. It is later revealed in episode four (4) that her memory was wrong. In reality, it was Shin's father who killed a man in a drunken rage, which caused Shin to become an outcast, and made it difficult for him to make friends. Even though he was an outcast, Heroine chose to stay by Shin's side, because she cares for him very much, Toma also stays Shin's friend throughout his struggles along with the Heroine. Shin is deeply in love with Heroine, and has been with her for three months.
- His symbol flower is dahlia, which means splendid and graceful in the flower language.