Harthi is a High Elf, male, with a merchant background. He was taken randomly, at a time long in the past, as a victim to experiment on by an evil wizard. To learn more about that, read about the Shelves Plateau. The short of it however is that he's eventually freed after being in a suspended state for a long, long time. Now he's separated in time from his elven counterparts.
Harthi, who we will call “The Original” & is a normal Elf ended up with an entire lineage of cloned male and female sheep, all based on his genetics, who are sentient, know they are supposed to be elves, but exist in sheep bodies. Read about the “Shelves” for more about that. They have entered the campaign setting as a people newly trying to find their places in the world. Those who have started exploring the realm are not unified in their ambitions or personalities, which leads to a diverse spectrum of “Harthis” wandering around. Each Harthi is known as “Harthi” with a number after it. The numbers do not represent the order they were born throughout generations, they are instead fairly random.