Manga by author Mochizuki Minetaro

From Tokyopop:In the horror of witnessing so many classmates perish before his eyes in a violent train wreck, Teru discovers two survivors in the tunnel: Ako and Nobuo. But salvation from this bloody carnage is far from their grasp. As they try to dig out from the wreck in order to come up with a plan to stay alive, the lack of light and food, combined with the stench of death and decay, will lead one member of the group down a dark and demented path. And with sudden, violent earthquakes shaking the tunnel, escaping to the outside world may lead them to an even greater danger...

Pirates like we see them in books or movies, do they really exist? Young Funako Yamato, martial art expert and daughter of a traditional fisherman will discover it against her will...Everything begins when some strange fellows kidnap her and she ends in middle of the ocean on a boat purchase by the police. Katou, a mysterious character, is looking for a fabulous treasure hidden on a desert island...