For example, OST, digital art book... Like Cyberpunk or other games.

Thanks in advance :)

Nope, only the games.

no DLC either ?

There is definitely DLC for at least some of the games. But it depends on which game you are talking about.

Let's say we list it all ?

Two DLCs are listed that are not included in the bundle that’s currently on sale (Yakuza Zero, Yakuza Kiwami 1 & 2, Yakuza 3, 4, 5 and 6), those are the Clan Creator Card Bundles for Yakuza Kiwami 2 and Yakuza 6.