Nagasarete Airantou

Nagasarete Airantou (Cast Away... Airan Island) is a manga created by Takeshi Fujishiro that begun in January 2002 and continues to be published to this day. An anime adaptation ran from April to September in 2007. It is about a boy named Ikuto Tōhōin, who finds himself washed up on an island populated only by females.

Manga

Drifted Away (Volume 1, Chapter 1)

Suzu accidentally inflates Ikuto when trying to perform CPR on him.

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Chased (Volume 1, Chapter 3)

Tonkatsu has the ability to blow up like a balloon whenever needed.

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Sunset (Volume 1, Chapter 4)

Ayane hits Suzu with anesthetic while hiding underground, but Suzu brings her out by inflating her through the blowgun.

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Anime

Drifted to Paradise?! (S01E01)

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Being Chased After, Bridegroom (S01E02)

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It is Delicious, Bride Training (S01E12)

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