Hina Tsurugi is starting high school in the countryside. She’s excited to join the Handicrafts Club, but she runs into a girl named Yuki by the ocean and before she knew it, she somehow joined something called the Breakwater Club.

Hina and Natsumi head to the Breakwater Club where Yuki has them participate in a club "tradition." Later on, Hina tries to learn the basics of fishing.

The girls head to a fishing shop to help Hina find a fishing jacket. Later on, they try to catch some squid by using a fishing jig called "Egi."

The girls go clamming and Hina and Natsumi meet the Breakwater Club’s advisor for the first time.

The girls in the Breakwater Club learn how to float properly just in case they ever fall into the ocean. Later on, Hina goes to battle with a heron, but then notices it has a fishing line tangled around its leg.