The solo adventurer, Aisha, takes on a quest from the adventurers’ guild once again, plunging headfirst into danger. This time, Aisha sets off by ship and is assailed by a sudden storm and an incursion of monsters. The struggle ends with her falling overboard, and she is cast away to an unknown island. However, it appears that the island is controlled by pirates and is threatened by a huge sea monster that sinks any and all ships it encounters. Aisha now must find a safe way home from the Ardusta Sea!​