Sega's unending line of Yakuza 4 collaborations have mostly been variations of promotions that were previously used for Yakuza 3. But this one is totally new.

Kai Group, maker of beauty care products and knives, will be using Yakuza series hero Kazuma Kiryu as the image character for its new razor product, Kai Razor. Kazuma will appear in ads, retail videos, and stands promoting the new product.

This looks like a one-way promotion. There's no indication at present that you'll find in-game razors in Yakuza 4 -- although a razor would make for a pretty nasty heat move.