I knew this game was definitely made by the same guy who did Barrage! since the art and animation are similar! great that he did another one since i thought the developer stopped with Barrage!
Good thing i searched this one on google, since someone posted a gameplay of this on PH and i thought this was an old game and that i've missed it years back.
And yeah, the game's dialogue isn't readable and everything else, you will need a japan locale registered on your windows language setting (i forgot what it is but its something that RPG MAKER TOOL requires from most people who did made a game in japanese) its a hassle and it messes up your computer so probably best not to tinker around with it and just stick with the language barrier, and play the game as it is, easy to know what to do since its a simple game.