This title is known as Fate/Grand Order and is published by Sony Music.
Shina (very rare for Niponese game to do well in Shina): http://www.neogaf.com/forum/showthread.php?t=1344359
http://www.neogaf.com/forum/showthread.php?t=1368415
these reports are a few months old, but nonetheless the game still seems to be big as in Sony's latest financial reports it states:
"Sales increased 18.8% year-on-year (a 17% increase on a constant currency basis) to 168.6 billion yen. The significant increase in sales was mainly due to higher Visual Media and Platform sales and higher Recorded Music sales. Visual Media and Platform sales increased due to the strong performance of Fate/Grand Order, a game application for mobile devices. Recorded Music sales increased primarily due to an increase in digital streaming revenues."
Looks to be getting over $2M in revenue each day on iOS https://thinkgaming.com/app-sales-data/62911/fategrand-order/
and they'll be doing an anime http://www.crunchyroll.com/anime-news/2017/05/24-1/sony-president-indicates-plans-for-more-fategrand-order-anime











