Murder on the Marine Express is a visual novel game and the first installment of The Mysteries of Ranko Togawa series. The St. Joachim Academy for elite girls booked the maiden voyage of the new Marine Express submarine train, which runs along the ocean floor from the sunny California all the way to the Japanese coast. The journey seems like the perfect opportunity to enjoy the beautiful underwater views, learn a bit more about marine biology and, ultimately, relax from the usual school life. However, the idyllic travel turns into a nightmare when one of the accompanying…