The Pokémon Center Tohoku will be holding the Pokémon Tanabata Festival (ポケモンたなばたまつり) 2014 from August 1st, 2014 until August 8th, 2014. The Tanabata Festival is a Japanese star festival that takes place yearly. In commemoration of the festival, a Jirachi will be distributed at the Pokémon Center Tohoku from August 1st, 2014 until August 31st, 2014. The Level 10 Shiny Jirachi knows the moves: Wish, Swift, Healing Wish and Moonblast and is holding the Star Piece item.


Source: http://www.pokemon.co.jp/info/2014/07/140711_p03.html