A TANNING SALON.
That's right, Japan's Tanning Studio Sole appears in game and is also selling special Ryu Ga Gotoku 3 gift cards (priced at ¥10,000 and ¥20,000). Ryu Ga Gotoku 3 banners will be placed in front of Tanning Studio Soles across Japan.
Does Tanning Studio Sole work? If Nagoshi's leathery hide is anything to go on, yes, yes it does.
『龍が如く3』で新たなコラボ！ 今度は日焼けサロン [Famitsu]