Bodacious Space Pirates: Abyss of Hyperspace Vol. 1 (manga)

Marika Kato is your average third-year student at Hakuoh Academy, busy with homework, leading the school's yacht club, and working part-time at the Lamp House cafe. But that's not all to Marika's life---she's also a space pirate! As the captain of Bentenmaru, a privateer pirate spaceship bearing a letter of marque, Marika takes on a job involving a staged attack on a luxury cruiser, where she finds a mysterious young boy on the run and a new task for the crew of Bentenmaru.