Aina Yoshiwara

An incredibly timid freshman at Oumi Women's University, this student reluctantly finds herself part of the Grand Blue Diving Club after meeting Iori and Kouhei. Despite her deep-seated shyness and intense discomfort with revealing clothing, she gradually finds her footing within the group. Through her shared passion for the sea, she develops a close and meaningful bond with Chisa, navigating her new social circle one step at a time.