Age in Mobius: 
1st Year (Age 16)
Age in Reality: 

Kensuke is a 1st Year high school student.

He is 16 in Mobius and has been there for two years.

An Ostinato Musician who produces songs for µ, Kensuke is an enemy of the Go-Home Club. His battle with the Go-Home Club forces him to question his own existence and he ultimately decides to join his former enemies in their quest to return home.