in that one, Kame was boxing Subaru. Kame has been the lead since Takizawa Hideaki left the musical (it was his solo production before giving it to Kamenashi).
it's been in production for a while, i forget the year it started. KAT-TUN & KANJANI8 have been affiliated with it, but ever since 2006, it's mostly Kame now. & it's usually Kame who wins. LOL. & i think Tegoshi is the "new guy" from what i've read, so maybe it's going to be a little bit different this year.