http://www.youtube.com/watch?v=0pXA_PxiqNc
(if you never watched the anime) Plot Summary: Shima has always strove to be an excellent obedient child to his parents and to others, but in the process he could never be himself. Because of this he has always felt lonely, even with all the people who say they love him. When the picture of his recently deceased grandfather falls into the ocean, Shima nearly drowns jumping in after it. He is quickly saved by a mysterious man. In a daze Shima confesses his loneliness to the stranger, who then vows to stay by Shima's side for as long as he needs him. Shima quickly finds out that this stranger is a merman. Shima takes him home, and names him Isaki. Isaki and Shima quickly become friends, but find out that their feelings for each other might go past that of friendship.
~set after the show, its been a month but Isaki wants to make it permanent the only way he knows how, he wants to be human, GASP "I choose a mortal life" sound familiar ;D ~
I do not claim rights to this, duhh , cutesy fluff