The "life-and-death sibling" story follows Utsutsu and Yume Hasegawa, a boy and his little sister who find themselves all alone. One day, Yume sees a mysterious red butterfly and her body undergoes a strange metamorphosisΓÇöinto a creature that eats humans. Utsutsu struggles to find a way to restore his sister.

Read more at http://myanimelist.net/anime/19315/Pupa#5lF0k76meMrPtXIp.99

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3rd torrent, hehehe, im getting the hang of it a bit

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