Wolverine comes to Japan to meet an old friend whose life he saved years ago, and gets embroiled in a conspiracy involving yakuza and mutants.
Mutants meet yakuza yay!
Cut the crap.
To be honest, this is going to disappoint you for sure. I feel that may be because I'm Japanese and I see many funny things about Japan which are not quite right.
Even you skip this and jump to the next one, there will be no problem at all.