Ubisoft already started in North America and Europe the open beta test of the For Honor. In Japan the OBT starting today at 23:00 (local Japan time) on PC and PlayStation 4. Since the game got CERO Z rating it means the game available only for 18 + year old users so the PS4 users going to be charged with 100 Yen what they will receive back after the OBT.

The OBT going to ends on February 12, 2017 at 23:00. With the OBT release, Ubisoft Japan published the Japanese version of the 360° battle trailer what you can watch above.
If you want to share your experience or talking about the other OBT users visit the official Beta Forum: http://forums.ubi.com/forumdisplay.php/1502