Middle name for Keanu "Kenny" Takeo

I need a middle name for one of my characters.

He is a transgender man, 14 years old, and half Hawaiian, half Japanese.

His first name is [name_m]Keanu[/name_m] (nn [name_m]Kenny[/name_m]), last name [name_m]Takeo[/name_m].

I’d prefer a middle name that starts with J, but any letter will work.