There's a new puppy in Japan that literally wears his heart on his back.

A brown and white chihuahua was born in Japan with a perfectly shaped, brown heart on the back hairs of his coat, The Daily Telegraph reports.

The long-haired male stunned the owners of Pucchin Dog's shop in the northern Japan town of Odate when he was born on May 18, as one of a litter, but the only one to have such a remarkable coat.

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The pet shop's newest addition was named "Heart-kun" by the owner, who said he is the rarest dog she has even bred.