Steal Princess ～盗賊皇女～ : アニスとデルタの日常。

This is from the Japan-only Drama CD pre-order bonus of the Japanese release of Steal Princess; however, I'll bring this down, if requested.
Game: Steal Princess ～盗賊皇女～
Developer: Climax Entertainment
Publisher(s): Marvelous Entertainment (Japan), Atlus USA, Rising Star Games (Europe)