|Hair||Brown, Grey, Multicolored, Short, Stubble|
|Role||American, Detective, Senpai, Widower|
|Visual novels||Main character - 1st Degree|
|Voiced by||Ian (Demo Version)|
Peter Joshua Kanis
Aiden is an all-American boy who is Rei’s supervisor at the Crime Agency. He is a homicide detective and accompanies Rei to the crime scenes whenever a murder occurs. He is in charge of both the main cases in this story: Doctor’s Case and Copycat’s Case. Aiden is a widower and has been struggling to quit smoking ever since. Slowly, he’s starting to open up to Rei about his past. Aiden tries, and fails, to keep his distance from anything too personal by maintaining a strict supervisor/employee relationship.