|First Appearance||Shikigami no Shiro II|
Shin resembles an older version of his brother with longer hair and similarly-colored eyes and hair. He wears a large white vest that surrounds his body, while underneath he wears a black fabric that covers his skin.
Although Shintaro does not make an appearance in Shikigami no Shiro III, he is referenced several times by the characters in the game, plus Batu Harai shares a similar outfit design, although the two characters are unrelated.
|Protagonists||Kohtaro Kuga · Sayo Yuuki · Gennojo Hyuga · Fumiko Odette Van Stein (Chibi) · Kim Dae-jeong · Niigi Gorgeous Blue · Roger Sasuke · Emilio Stanburke · Batu Harai · Mihee Kim · Reika Kirishima · Nagino Ise · Munchausen · Tagami|
|Supporting Characters||Sazae · Greater Manekineko · Moonsong · Devourer · Strider|
|Antagonists||Aku Miyoko · Juu Fujishima · Aku Hiroshi · Aku Bauman · Shoujo · Arala Cran · Anolegos Dundeon · Ajo Brothers · Yukari Horiguchi · Shintaro Kuga · Shikou Mibuya · Freedom Wind · Kagachi · Tsukiko Johjima|