Speaking as someone who actually didn't mind the Northern War anime, this is absolutely horrible. Honestly a genuine insult and mockery to my favorite series.

First of all it's one of the most generic auto-battler gachas I've ever seen right down to the UI. On the surface it tries to implement the same gameplay as the actual Trails games, but it does a horrible job of it and makes it extremely grind heavy to get both gacha pulls and just advance in the 'story' of the game too because of how much it inflates the attack power of even the weakest enemy. Speaking of the 'story', the 'story' of the entire game is just a retelling of the anime, right down to the 'cinematic cutscenes' being literal scenes from the anime. There's nearly nothing added here and it just makes the anime worse because the translation is literally a broken machine translation which has a ridiculous amount of grammatical errors like spelling 'Thors' as 'Tholz' and just downright mistranslating character bios and names ("Du Barry of the Iron Cavarly" instantly comes to mind).

The game also has some of the worst monetization I have ever seen in a F2P or Gacha game with 4 different individual battle passes you have to purchase and single character purchases being the same price of an actual Trails game and of course there's a PvP Arena mode so you know that's going to instantly become P2W.

Even if you're a die-hard Trails fan, there's literally no reason to ever give this game your time, let alone the egregious amounts of your money that it asks you for as well. One of the laziest and saddest excuses for a 'game' (If you can even call it that) I've ever seen.