Without notice, Utawarerumono: Mask of Deception and Utawarerumono: Mask of Truth has been removed from the PS Store. Atlus had published both games in the West.
It is precise because of the publisher that the games must have been removed from the digital store: the rights to the series are with NIS America, which published Utawarerumono: Prelude to the Fallen Utawarerumono: ZAN.
However, no prior notice was given, and now PS4 games are no longer for sale at Sony’s digital store. It is worth mentioning that both have physical media, so if you are interested in them in any way, it is good to guarantee their copy before prices rise in value.