The trailer concentrates on one of those four princesses, that is the business-minded, Gatling-wielding Monomaria. We watch her in action and also we hear a little bit of her voice, played by Rarisa Takeda Tago.
The game features a mechanic somewhat similar to the Criminal Girls series, where the player is motivated to praise or reprimand the princess so as to further her training, based on her activities and how they affect the game.
It is possible to check out the trailer just below. If you want to see more, you can also have a look at the following recent gameplay trailer showcasing the praising mechanics and battle, and the original reveal from October.
The game was supposed to be released for PS4, PS Vita, also Nintendo Switch January 25th, however it has been delayed to March 8th, 2018. At the moment, no western launch has been announced.