Kaname Okiura, a student of Umineko Shougyou High ("Umishou" for short), joined the school’s swimming club in order to learn how to swim, but the club is filled with weirdos. Then, a sunny, happy-go-lucky girl named Amuro Ninagawa who transferred from Okinawa joined the club. Her extraordinary underwater speed and unorthodox swimming style surprised every club member, especially Okiura, because she reminds him of a mermaid he saw only once in his early childhood.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Churaumi | 2007-07-04 | 25 min |
| Season 1 | Episode 2 | I might be... Interested... | 2007-07-11 | 25 min |
| Season 1 | Episode 3 | I'll show you!!! | 2007-07-18 | 25 min |
| Season 1 | Episode 4 | I'm going to show you | 2007-07-25 | 25 min |
| Season 1 | Episode 5 | Do you want mine, too? | 2007-08-01 | 25 min |
| Season 1 | Episode 6 | No Way! | 2007-08-08 | 25 min |
| Season 1 | Episode 7 | Curse | 2007-08-15 | 25 min |
| Season 1 | Episode 8 | Take a good look | 2007-08-22 | 25 min |
| Season 1 | Episode 9 | Help me forget... | 2007-08-29 | 25 min |
| Season 1 | Episode 10 | Chest Massage? | 2007-09-05 | 25 min |
| Season 1 | Episode 11 | Could it be... | 2007-09-12 | 25 min |
| Season 1 | Episode 12 | Oma Oma ~ | 2007-09-19 | 25 min |
| Season 1 | Episode 13 | Mermaid | 2007-09-26 | 25 min |
