Is this game complete? Is it a good long story or tons of content to do?

[Hex:Mizu]

I want to play this game when it has a good chunk of content and long story. I spoke to this friend and said its a short game and incomplete and you get done quickly. Is that true?

[SirConradTheIdiot]

If you're familiar with modern Pokemon games the content is generally what you would expect from one of those. The games full "plot" is filled out, but once the story is done there is generally no special content aside from some repeat battles and the general goal of collecting them all.
However with the mobile update it seems there are plans for something larger, what that contains is still left in the air but it shows more monsters and customization options, supposedly a boss rush, and hopefully more content.
For the base experience it's enjoyable to go through, and with its difficulty customization along with having multiple save files allows for you to do repeat playthroughs of the game if you wish to do some challenge runs, or go for all the games achievements.

I'd say if you desire more end-game and post-game content you probably want to wait until the major update comes to see if what it brings will meet your expectations.

[Xaelon]

I would say the story takes around 20-40 hours to complete depending on how many side quests you do and how often to stop to catch new monsters.

After the story there isn't too much to do, but some sort of single-player postgame is currently in the works.

If you aren't opposed to replaying the story the game has a randomizer and a bunch of ways you can customize the game's difficulty to make things easier or harder. You can make the game play like a nuzlocke or one of the variants of that ruleset for example.