The hyperactive teenage scuba diver, Hikari Kohinata, lives in a small town near the sea. On her first day of high school she meets the shy transfer student, Futaba Oki, who is struggling to find a place after moving away from Tokyo. Hikari takes the lead, dragging Futaba into her hijinx, and the two soon become close friends
| Title | Time | |
|---|---|---|
| 1 | The Story of the Girl and the Ocean | 2016-07-08 |
| 2 | The Story of Doing Something Bad With Hikari | 2016-07-15 |
| 3 | The Story of the Secrets to Excitement and Happiness | 2016-07-22 |
| 4 | The Story of Excitement and the Despairing Heart | 2016-07-29 |
| 5 | The Story of the First Time at Sea With Friends | 2016-08-05 |
| 6 | The Story of the False Wish | 2016-08-12 |
| 7 | The Story of the End of Rain / The Story of the Beginning of | 2016-08-19 |
| 8 | The Story of the Feelings Yet Hidden / The Story of the Thin | 2016-08-26 |
| 9 | The Story of the Memories You Can't Erase | 2016-09-02 |
| 10 | The Story of Losing Your Way in Today | 2016-09-09 |
| 11 | The Story of the Cat and the Kitten | 2016-09-16 |
| 12 | The Story of the Blue World | 2016-09-23 |
