Marvelous started the official half price campaign of the PlayStation Vita version Oboro Muramasa (Muramasa: The Demon Blade) in the Japan PSN.
Until November 30, 2016 you can buy the game for only 999 Yen (with tax) instead of 3086 Yen (with tax) and in the same time you can get all the 4 DLCs for only 250 Yen (with tax).

This special campaign available only in Japan and only with the digital version of the game.
Here is the PSN link:!/ja-jp/cid=PN.CH.JP-PN.CH.MIXED.JP-160303MURAM