Nintendo 3DS. The first Bokujou Monogatari game localized by XSeed Games. [ Game Guide ] JP release = Feb 2014. NA release = Mar 2015. EU release = Dec 2015.
Probably Mistel, since his loved gift is much easier to get. One of the ingredients for Fritz's loved gift is only available after you've unlocked all vendors so it takes a while.
You'll also have to see all of Fritz's farm rival events.