I am Sailing Seriously.

マジで航海してます。 (original title)

Synopsis

Ishikawa Tsubame and Sakamoto Marin are first-year students at a university for aspiring navigators. The two girls join a month-long practical training aboard a vessel for their first test as freshmen in an environment where 80% are boys. They have to cope with the gruelling training and unimaginable seasickness as they struggle together with the male students.