Synopsis
Tatsuya Tsugawa has just lost both of his parents in a car accident. While trying to live up to his father's dying wish of becoming an upstanding man, Tatsuya rushes to help Seine--his bizarre classmate--from bullies. Little does he know he is about to find himself in the middle of a supernatural war between the immortal Seine and sea creatures that can control humans. So much for being Mr. Nice Guy!
| AiON | |
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| Image of AiON | |
| Manga Name (English) | AiON |
| Name in original language | 碧海のAiON |
| Romanized Name | Hekikai no AiOn |
| Type | Manga |
| Originally Aired | July 9, 2008 - July 9, 2012 |
| Release Date | July 9, 2008 |