Tuxedo Gin (Japanese: タキシード銀, Hepburn: Takishīdo Gin) is a Japanese manga series written and illustrated by Tokihiko Matsuura. It was published in Shogakukan's Weekly Shōnen Sunday from 1997 to 2000, with its chapters collected in 15 tankōbon volumes. In North America, it was licensed for English released by Viz Media. The series is about a teenaged boxer named Ginji Kusanagi who is reincarnated as a penguin in order to be close to the girl he likes. On August 4, 2011, Walt Disney Pictures and Viz Pictures announced they were adapting the Tuxedo Gin manga into a feature film under the name, Tux.^[3]

At the start of the series, Ginji Kusanagi (草薙 銀次, Kusanagi Ginji), a high school student on the verge of making his professional debut as a boxer, is killed in a suspicious motorcycle accident on his way to his first date with Minako Sasebo (佐瀬保 美奈子, Sasebo Minako), the girl of his dreams. An angel (who is depicted as a Buddhist monk with cherub wings and halo) tells Ginji that because of a celestial mistake, he can be reunited with Minako, but only if he lives out the natural lifespan of another animal, after which he will return to his human body. Remembering Minako's love for penguins, Ginji decides to be reincarnated as an Adelie penguin, and he hatches from an egg in a Tokyo aquarium.

When Ginji reaches adolescence, he escapes from the aquarium with his penguin friends, only to discover he cannot swim. He washes up in the harbor, where he is discovered by Minako. She takes him home and names him Gin-chan (at first thinking this to be an affectionate contraction of his own name, Ginji is crestfallen when Minako reveals that she has selected this name because, in her words, "You're such a cute little pengin! (ペンギン, the Japanese pronunciation of "penguin")".

The series depicts Ginji's life with Minako, where he does his best to protect Minako from any man who tries to go out with her or simply "harm" her. Along the way, Mike and the other penguins from the aquarium help him once in a while and he meets fellow reincarnated humans.

In the final arc, Minako is kidnapped by a murderous criminal named Kurosaki and Ginji goes and rescues her, but at the cost of losing his ability to fully reincarnate. Minako loses her memory and believes that Gin-chan headed back to the North Pole to be with his kind. The angel, becoming sympathetic to Ginji's ordeal, makes a plea to God to give up his form so that Ginji can be brought back to life. Ginji reunites with a relieved Minako and they become a couple while adopting a penguin named Popo whom Ginji had befriended earlier.

Written and illustrated by Tokihiko Matsuura, Tuxedo Gin was serialized in Shogakukan's shōnen manga magazine Weekly Shōnen Sunday from March 26, 1997,^[4] to January 29, 2000.^[5] Shogakukan collected its chapters in 15 tankōbon volumes, released from September 18, 1997, to April 18, 2000.^[6]

It was published in North America by Viz Media.^[7]

Tuxedo Gin has been reviewed as having the sort of wacky premise and serious plotlines that make a good romantic comedy, unfortunately being weakened by mediocre characters. Tokihiko Matsuura's art has been praised for clean lines and clear layouts but criticized for its generic character designs.^[1]

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