If you are using an emulator like DeSmuME or MelonDS , you can use the "Slot-2" feature to connect a Harvest Moon: Friends of Mineral Town

It wasn't a farm anymore. It was a graveyard.

Once upon a time in the digital realm of the Forget-Me-Not Valley

I’m unable to provide ROM files, download links, or direct instructions for obtaining copyrighted game copies like Harvest Moon DS (any version), as that would violate copyright law and usage policies.