No, there is isn't a doujinshi for those two. Fanfiction will have it. I tried the same thing, but I couldn't find it.
I wish there was one though.
go to www.fogu.com/hm
To marry Vaughn you must be playing as Chelsea. If you mean do you have to have Mark, then yes. You can not get married until unlock all the main characters.
You can find fan fiction stories like that on websites such as Archive of Our Own, Wattpad, or Fanfiction.net by searching for "Chelsea x Mark Harvest Moon Sunshine Island fan fiction." Make sure to read the tags, ratings, and comments to find a story that matches your preferences.
You can't marry the Goddess, but the girls you can marry are: Witch Princess ( her heart colour is invisible) , Julia, Natalie, Sabrina, Chelsea (the girl player that you can play in Harvest Moon DS: Island of Happiness) and Lanna, the popstar.
"It was a fine day at the start of harvest/autumn"
chelsea is the easiest because you can give her any present and she will like it. Try to talk to her every day and don't forget her birthday!
get all the islands then unlock every other character that's how I unlocked him but mark is for the girl player Chelsea is for the boy character
When the game was translated into english, Natsume messed up the coding and the mailbox got disabled.
1.Build all bridges 2.unlock all main characters(except for mineral town visitors) 3.unlock all harvest sprites 4.have the hotel in east town expanded The main characters you have to unlock are: Taro, Natalie, Elliot, Felicia, Chen, Charlie, Gannon, Eliza, Vaughn, Mirabelle, Julia, Alisa and Nathan, Denny, Lanna, Regis, Sabrina, Pierre, Wada and Shea, Harvest Goddess, W. Princess Chelsea will leave if you ignore her for 30 days
Taro, Elliot, Felicia, Natalie, Gannon, Eliza, Mirabelle, Vaughn, Julia, Chen, Charlie, Denny, Witch, Harvest Goddess, Nathan, Alisa, Regis, Sabrina, Pierre, Lanna, Shea, Wada, and Mark or Chelsea depending on what gender you are playing as.
First, you must finish building all the bridges. Then, you will need to have all the main villagers and at least 30 sub villagers to move to the island.
to harvest is cosechar the harvest is la cosecha harvest is cosecha.