Nagasarete Airantou
Genres: Comedy, Fantasy, Romance, Ecchi
Type: TV, Episodes: 26
Aired: Apr 5, 2007 to Sep 27, 2007
Studio: feel.
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Ikuto Touhohin just had a fight with his old man, one that led him to make a rash decision to run away from home. He boards a ship, deciding to take a vacation, but the ship is suddenly hit by a huge storm—one that sends Ikuto overboard! When he regains consciousness, he realizes he is still alive on some island. An isolated island. An isolated island with nothing but girls. Beautiful girls. Stranded on an island with only girls, no electricity, gas, radio, television, like he was back in the stone age.

(Source: AniDB)