Introverted Hina Tsurugi is trying to adjust to her new school since moving from the countryside. And in spite of her unease around sea life, classmate Yuuki Kuroiwa somehow convinces her to join the Breakwater Fishing Club. She wants to be open to these new friends and experiences, but some of them are as strange as the fish they’re supposed to hook. Is she biting off more than she can chew?