All I can say is Wow ! !
The basic story is that the Witch Princess (through a bunch of spells she did trying to be funny) banished the Harvest Goddess (who is rather annoying in the opening cutscene by the way) to another world. Being too busy (or lazy) to find her, the witch princess sends the Harvest Sprites to find her. Then, you, the player are introduced somehow - being the great reviewer I am I can't remember it ! Anyway, the basic concept of Harvest Moon is too make your farm business boom! Sound easy ? Well it's not as easy as it sounds. For the DS version you only start off with a House and a Stable, so you have to go around growing crops, and making a suitable income to buy an animal house which is needed to own animals. It's all about strategy though! For example, you have to build your animal house etc in places. Then you can either spend lots on the materials, or you can take the time consuming option of getting all of the materials through means of chopping or smashing. It takes a lot of time but it is very satisfying once you've got all the materials ready.
The only thing I can say about this game that I dislike is the sound - it gets pretty irritating at times.
All in all, I feel that this is a good game - I really enjoy it at the present time, it keeps me entertained - thats what it's supposed to do !