Collector

A few years after the big breakthrough in space navigation a gorgeous space cruise ship was hit by space pirate ship "Ganymede". Their purpose was to insult the beautiful women until they got bored and to store girls in frozen capsules. It seemed like collecting beautiful butterflies. Among the frozen hostages was Queen Julia...
Main character special agent Kazu infiltrates the pirate ship to put an end to pirates dealings.

[From vndbreview]