Acquire is one of those Japanese companies that's been around forever, quietly making games. It blew up immediately after the release of Tenchu 1 and 2, before the series was taken away from them shortly after (oh what could have been). From there they continued down a similar path with Way of the Samurai and Shinobido, before hitting it big in 2011 with Akiba's Trip.
Since then they've been collaborating with various studios (including doing some co-development work on Octopath Traveler), and supplementing their income with multiple Akiba's Trip titles. As Gematsu points out, we can expect at least one new reveal following a leak: Class of Heroes Quest.