滿潮永澄是住在埼玉縣極普通高中生，某日來到祖母居住地所在的瀨戶內海遊玩，不小心跌落到了海中。快要被淹死了的永澄被一位美麗的人魚少女瀨戶燦救起，燦借此機會向永澄求婚，但遭到燦的父親豪三郎的極力反對！原來豪三郎是人魚族的黑社會集團瀨戶內魚類連合「瀨戶組」的老大！ 永澄因為得知了人魚族存在的秘密而遭到黑社會的追殺？！不過燦的母親、豪三郎的妻子蓮以及瀨戶組幹部政的理解下，永澄平安無事的回到了埼玉的家中。燦卻追隨著永澄來到他就讀的磯野第三中學校，充滿暴力風情的青春愛情喜劇就此拉開帷幕。
滿潮永澄是住在埼玉縣極普通高中生，某日來到祖母居住地所在的瀨戶內海遊玩，不小心跌落到了海中。快要被淹死了的永澄被一位美麗的人魚少女瀨戶燦救起，燦借此機會向永澄求婚，但遭到燦的父親豪三郎的極力反對！原來豪三郎是人魚族的黑社會集團瀨戶內魚類連合「瀨戶組」的老大！ 永澄因為得知了人魚族存在的秘密而遭到黑社會的追殺？！不過燦的母親、豪三郎的妻子蓮以及瀨戶組幹部政的理解下，永澄平安無事的回到了埼玉的家中。燦卻追隨著永澄來到他就讀的磯野第三中學校，充滿暴力風情的青春愛情喜劇就此拉開帷幕。
Animation Director (ep 12), Key Animation (eps 8, 17)
Sound Director
Episode Director (eps 9, 14, 19, 24)
Storyboard (ep 6, 13)
Art Director
Key Animation (eps 2, 6, 10, 16, 20, 22, 26)
Key Animation (ep 5, 22)
ADR Director
Animation Check (eps 3, 8, 11, 16-17, 20, 26), In-Between Animation (eps 1, 3, 5-6, 9, 11, 14, 16-19, 21-22, 24-26)
Animation Director (ep 13)
Script (eps 1-4, 7-8, 12-13, 17-18, 20, 26), Series Composition
Director, Storyboard (eps 1-2, 17, 26, OP, ED1-2), Episode Director (eps 1-2, 17, 26, OP, ED1-2)
Music
Key Animation (ep 21)
Storyboard (eps 14, 19)
Key Animation (eps 13, 17, 26)
Theme Song Lyrics (ED2)
Producer
Key Animation (eps 5, 20, 26)
Planning
Key Animation (ep 7)
Publicity
Key Animation (eps 5, 9, 12, 16, 19, 23)
Key Animation (ep 4)
Key Animation (ep 13)
Key Animation (eps 1, 11, 15, 18, 24-25)
Producer
Script (Eng adaptation)
Key Animation (eps 3-4, 6, 10, 16, 26)
Assistant Producer
In-Between Animation (ep 15), Key Animation (OP)
Producer
Key Animation (eps 1, 10-12, 25-26)
Key Animation (ep 7)
Key Animation (ep 7)
Key Animation (eps 17, 21)
In-Between Animation (ep 6), Key Animation (eps 8, 11-12, 16, 18, 20, 22, 25)
Key Animation (eps 4, 12, 14-15, 19, 22, 26)
Planning
In-Between Animation (eps 14-18, 20-22, 24-26)
Animation Director (eps 9, 15, 23), Key Animation (eps 9, 19)
Episode Director (ep 3)
Storyboard (ep 11), Episode Director (ep 6, 11)
Key Animation (eps 5, 9, 15, 23)
Key Animation (eps 1, 18, 24)
Key Animation (eps 3, 10, 16, 20, 24)
Key Animation (eps 12, 15, 18, 25)
Key Animation (ep 21)
In-Between Animation (ep 20)
Key Animation (ep 21)
Animation Director (eps 5, 11, 17-18, 24-25), In-Between Animation (eps 14, 18), Key Animation (eps 11, 17, 26, OP)
In-Between Animation (ep 20)
Script (ep 18)
Script (eps 5, 10, 14, 16, 19, 23-24)
Key Animation (eps 7, 13, 17)
Storyboard (ep 9)
Executive Producer (English version)
Character Design, Animation Director (ep 26, OP, ED1-2), Key Animation (ep 26, ED1-2)
Original Creator
Animation Director (ep 1), Key Animation (eps 1, 10)
Producer (English version)
Key Animation (eps 2, 9, 15, 19)
Storyboard (eps 5, 10), Episode Director (eps 10, 15, 21)
Key Animation (eps 2, 6, 10, 20)
Producer (eps 1-5)
Key Animation (ep 22)
Animation Director (ep 17), Key Animation (eps 7, 26)
Key Animation (eps 3, 5, 12, 16, 18, 23, 25)
Key Animation (ep 2)
Key Animation (ep 7)
Key Animation (ep 13)
Key Animation (ep 5)
Background Art
Producer
Key Animation (ep 24)
Planning
Key Animation (eps 8, 14, 18, 24)
Key Animation (eps 7, 17)
Key Animation (eps 20, 22)
Key Animation (eps 1, 16, 26)
Script (eps 6, 9, 11, 15, 21-22, 25)
Animation Director (eps 12, 25), Key Animation (ep 17)
Theme Song Performance (ED)
Theme Song Arrangement (OP), Theme Song Composition (OP), Theme Song Lyrics (OP), Theme Song Performance (OP,ED2), Inserted Song Performance
Theme Song Performance (OP)
Key Animation (eps 4, 8, 16, 24, OP)
Key Animation (eps 7, 13, 17)
Key Animation (eps 2, 8, 16, 21-22)
Key Animation (ep 11)
Key Animation (eps 4, 12, 25)
Key Animation (eps 3, 15, 19)
Publicity
Episode Director (eps 16, 22)
Key Animation (eps 11, 16)
Animation Director (eps 2, 8, 14, 17, 20, 26), Key Animation (eps 2, 8, 14, 17, 26)
Episode Director (eps 4, 13, 20, 25)
Associate Producer
Key Animation (ep 23)
Key Animation (eps 5, 20)
2nd Key Animation (ep 21), Key Animation (ep 7, 13, 17)
Director of Photography
Key Animation (ep 8)
2nd Key Animation (ep 13), Key Animation (ep 17, 21)
Key Animation (ep 2, 6, 10, 14, 22, 25)
Color Design
Sound Effects
Key Animation (eps 4, 8, 10, 12)
Amamiya is kawaii!
完結散花～～好看！