Mister One (緒根さん One-san) is a cockatiel and St Pigeonation's janitor. Normally he is not seen much if at all, although he is first shown in BBL/Hurtful Boyfriend and reappears in HolidayStar.
According to Hato Moa, Leone is the tallest character in the cast.[1]
Spoilers
His real name is Leone J.B and he's a secret agent of the Dove Party, as well as Yuuya's mentor during his time in training to be a spy.
In BBL's extended epilogue, it's explained that he manages to save Yuuya from his untimely death by giving him an antidote.
Mister One (緒根さん One-san) is a cockatiel and St Pigeonation's janitor. Normally he is not seen much if at all, although he is first shown in BBL/Hurtful Boyfriend and reappears in HolidayStar.
Trivia
- Leone's character concept is inspired by the film Luc Besson film Léon: The Professional.