Very different from the Harvest Moon you know.
The game is not all about killing monster. You can also "enjoy" the hard farming work. You can also build a family and get a bigger house. There are a few shops that sell an incredibly big number of very useful items, that will help you in both, explorer job and farmer job.
There are a few tiring parts, where you get stuck for some time trying to do the same thing.
There is an infinite number of food that you can cook, acessories to make, weapons and tools to forge and medicine to make. So you can pass some good time completing the game 100%.
This game is simply a mix of a basic ?RPG game with a Harvest Moon game.