The Chihuahua was born in May as one of a litter to a breeder.
Shop owner Emiko Sakurada said it was the first time a
puppy with the marks had been born out of a thousand she had bred .
She had no plans to sell the puppy, which has been named 'Heart-kun'.
The long-coated male Chihuahua puppy was born in Odate, northern Japan.
