Saotome Gakuen Blue Wind

2051 AD. Freshmen from MILITARY ACADEMY OF U.N. SPACE FORCE go to an excursion on a sightseeing ship. However, it gets hijacked by pirates and its passengers become hostages.

The heroine and two other second year students are given orders to pass the ransom while the second group infiltrates the vehicle and rescue the hostages.

[From vndbreview]