|Japanese Name||伊丙 士皇（いへい しお）|
:re - Associates (Formerly)
S3 Squad (Defected)
|Occupation||Ghoul Investigator (Formerly)|
|Relatives||Hairu Ihei (Distant relative) †|
Washuu Clan (Branch Family)
|Ward||1st Ward (Formerly)|
24th Ward (Currently)
|Manga Debut||:re Chapter 85|
Shio Ihei (伊丙 士皇, Ihei Shio) is a former ghoul investigator and alumni of the Sunlit Garden. He served as one of Kishou Arima's personal squad until his defection at Cochlea. He and his squad now serve as one of Ken Kaneki's bodyguards.
Shio is a young boy with short, white hair. He frequently wears the white trench coat typical of members of his squad.
He is an energetic and playful youth, in spite of his harsh upbringing. Among the three members of his squad, he is by far the most talkative and outgoing.
Third Cochlea Raid Edit
Tasked to protect Cochlea, Shio and the rest of Squad Zero later encountered Ken Kaneki beside Kishou Arima's corpse. After being granted permission to say their goodbyes to their late mentor, Squad Zero gathered around the dead investigator and mourned his death. 
Post-Third Cochlea Raid Edit
Clown Siege Edit
Shio, along with the other former members of Arima's personal squad, protects Kaneki and follows his orders.
Powers and Abilities Edit
Half-human Physiology: As a half-human hybrid, Shio possesses enhanced physical abilities that allow him to be a highly-efficient fighter.
Swordsmanship: Though young, he is already an accomplished quinque-user capable of taking on more experienced opponents. He has exterminated many ghouls early into his career, in spite of only being 14 years old.
- Despite being the youngest, he has the highest extermination rate among the half-human trio.