The Japanese version of Onmyoji just came out yesterday! I was actually holding back on testing this game until the JP version was out since I can read a little bit of hiragana and katana though I still fail at Kanji. Anyhow, the game is pretty amazing so far in terms of characters, graphics, artwork, style, and gameplay. Although I can't say the same about the Gacha rates since I rerolled for like 10 hours straight and didn't get a single SSR.
I think this is one of those games where an SSR character doesn't matter as much so I went ahead and started my game with the SR characters that I got since I wasted too much time rerolling. There are a lot of things to do in the game which includes multiplayer, collecting your Shikigami army, progressing through the story, random mini games for fragments, and more. Overall the game looks pretty well made and will probably keep you busy for a good couple of months. The storyline is also fully voiced for those that watch a lot of Anime and can understand JP by voice! You just have to download the additional voice packs each time, yikes on space!
Game Site: http://www.onmyojigame.jp/