After you complete the marriage requirements the Mayor will come by your house on a Sunny morning and tell you how to get the Blue Feather. You get it by climbing to the top of the Mountain on a Sunny day. But it will not not work until the Mayor tells you about it.
The requirements are:
Upgrade your house to Level Three
Buy and place a Double Bed in your house
Have at least Eight Hearts with a marriage candidate
Get at least 30 musical Notes
Once you have the blue feather you can purpose to a Girl.
The Blue Feather costs 1,000G.
A year after you get married with the blue feather.
well to get the blue feather one girl of your choice has to like you at the MAXIMUM level then you can buy the blue feather from the supermarket (for harvest moon ds)
it is the same way as harvest moon ds you buy the blue feather, get 60 harvest sprites and propose you have the wedding in a week. by elimac3
You can Purchase a Blue Feather From Karen's Shop after you have reached an Orange heart Level with your Lover
ALL 101
Just buy it from the place you did.
yes you can you just have to give them stuff they like and get the blue feather
well to get the blue feather one girl of your choice has to like you at the MAXIMUM level then you can buy the blue feather from the supermarket (for harvest moon ds)
Sadly you will have to buy another one from the supermarket.
Rock's Heart colour need to be red before you give him the blue feather.