This is basically Battleships with cute Japanese icons. There is nothing even vaguely resembling strategy, you just randomly fire at hexes and hope that something's there. If you have more than 1 unit you can recon as well, which is also just randomly clicking on hexes and hoping something's there.
The "tutorials" consist of a single page of instructions which you have to memorize before playing each scenario.
Then there are the cut scenes. Honestly, I think I might have gotten something out of this game if it weren't for these. They appear to be unskippable and are insanely annoying. They're done as JRPG style dialogues, where you have to click everytime someone talks. Even clicking through as fast as I could without reading anything I still spent more time clicking through cut scenes that I did playing the "game."
There maybe a good game under all the god awful dialogue, but since that takes up 90% of the time spent it's impossible to tell.