|Alternative Titles||: あまんちゅ！|
|Producers||: Production I.G, Frontier Works, Shochiku, AT-X, flying DOG, Tokyo MX, Mag Garden. J.C.Staff|
|Genres||: Comedy, School, Shounen, Slice of Life|
|Rating||: PG-13 – Teens 13 or older|
Hikari Kohinata is a cheerful 15-year-old girl who lives near the ocean and she spends much of her time diving as a result. On her first day of high school, she meets a teacher who also likes scuba diving. There’s also a 16-year-old classmate, Futaba, who gets dragged along in Hikari’s maelstrom as soon as they meet at school.