A Sea Cold and Deep

Katakura Kaito is a young transport pilot in the occupied colony of Europa. When he attains local notoriety for rescuing two wounded people after an insurgent bombing, he wants nothing more than to get back to his normal life, but the insurgent group Shumokuzame tries to recruit him to push their message in the media.

Annie Winters is an officer in the United Colonies Armed Forces, freshly arrived on Europa as part of the occupation. She believes in the Unification, and her mission to win over the hearts and minds of the populace. When her squad is attacked by insurgents, she is determined to find those responsible, but her commanding officer views her as too young and inexperienced to be trusted.

When Kaito and Annie meet, they both want to explore the intense attraction they feel, but the growing rebellion on Europa threatens to place them on opposite sides of a war.