Netmarble today started the closed beta test of the Knights Chronicle smartphone game in Japan. The CBT available only for the Android users and if you can play with it (you had to sign-up for it) you will get 90 extra diamonds when the official service starts. The test going to ends on October 19, 2016 at 23:59 (local Japan time).
The game is a real time RPG game which also includes a real time multiplayer mode too! For the CBT you need an active Google Play account and you have to use the same account when you want the extra 90 diamonds when the game release.
For the test (next to the right for the play) you need minimum Android 4.0.3 OS.