With all the marketing focused around the PS4 version, it managed to shift 185K, compared to the Vita's 120K. However, that's still plenty to keep Sony's portable high up the list of priorities for Japanese third-party developers.
The other new entry, Cladun Sengoku makes a pretty poor start to life, at under 4.5K, perhaps the Japanese are falling out of love with the humble pixel?
01./00. [PS4] Dragon Quest Heroes II
02./00. [PSV] Dragon Quest Heroes II
03./00. [PS3] Dragon Quest Heroes II
10./10. [PSV] Minecraft
11./06. [PSV] Powerful Pro Baseball 2016
15./00. [PSV] Cladun Sengoku
On the hardware front, it seems no game can boost Vita sales by much, so another modest rise of almost exactly 4,000 seems like a pretty good week, and brings the Vita over 5 million sales on the MC chart (it went past on Famitsu a few weeks back). The PS4 shot up 7,000 to almost 25K as Overwatch and Guilty Gear also broke into the chart.