AIKa R-16: VIRGIN MISSION

Aika is a high school student who obtained a C-class salvager's license despite her young age and impulsive personality. Her hot-tempered nature causes people like Gota to see her as a child, making it hard for her to find work. In order to attract clients, she places an advertisement at her school and catches the attention of Erika, a rich girl and leader of the treasure hunting club. Erika hires Aika for a salvage mission at sea, which Aika eagerly accepts. However, when she sees the advanced submarine on Erika's private ship and learns the true nature of the mission, she becomes worried. The mission leads to a confrontation with a group of high school girls on the southern islands. A mysterious girl named Karen is introduced, marking the beginning of Aika's new challenge.