CyberStep finally announced Cosmic Break 2 (Japanese - コズミックブレイク2) Closed Beta Test schedule.
Cosmic Break 2 - Japanese CBT
March 25 - 17:00 - 23:00
March 26 - 17:00 - 23:00
March 27 - 17:00 - 23:00
March 28 - 17:00 - March 29 -  23:00
March 30 - 17:00 - 23:00
March 31 - 17:00 - 23:00

This is open CBT (You don't need key) but probably game going require Japanese VPN. If you really interested in English version I suggest you to support developers in Cosmic Break 2 Kick Starter.
Currently confirmed servers - Japanese, Taiwanese, Korean.

CosmicBreak 2 is a cute anime style action game. Game going be focused on PVP and have 6 classes.

The Assault (High Mobility class), The Panzer (Tank/DPS), The Aerial (mid range-close range class), The Buster (Heavy long-range class), The Fortress (Just like Aircraft attacking from the skies), The Jammer (Debuffer).