Unlike her two "sisters", Karin never went to live in solitude, instead choosing to live among the villagers. She's a fairly energetic and outspoken girl who spends a lot of her time walking around the island village and helping out the villagers with what needs to be done. Of the three sisters, Karin is also probably the most romantically and emotionally able, even though she tends to become embarrassed just as easily as Narumi.