There is a luxury passenger ship sailing gracefully. However, a strange atmosphere fills the ship. A famous nobleman, an unidentified group of people, three Japanese people, and a mysterious parcel.... And Bake and Milia get involved in a theft that happened on the ship. As they get close to the point of the case, the existence of another crime comes to light. Who is the culprit...? What's going on in the ship...?

[From ErogeShop]