It's an original Japanese Manga. 2. Recreated as a film in 2001 in Korea 3. Nagase Tomoya, Tegoshi Yuya and Tanaka Koki are from the same company Tomoya is a Vocalist of TOKIO, Yuya is a songwriter/vocalist, Koki is a rapper/dancer.
Excellent series. Nagase is a master at making goofy faces. Pure comic genius. He reminded me of Jim Carrey. This series was based on a Kmovie of the same name. I haven't seen it but I'm sure it's not as good as this version.
Don't be turned off by the cheesy title. I'm not usually a fan of over-the-top acting but this series is hilarious w/ Nagase acting more like a neanderthal than a mobster. And moral lessons about school for the kiddies. Sad fractions LOL