Kyouko Misaki

Kyouko Misaki 「岬 鏡子」 is the protagonist's mother's younger sister, making her Hairi's aunt. She's involved with handling the items left behind by the late Mrs. Kato who lived alone on the island. She will excitedly sort through the antiques sleeping in the Kato family storehouse. She's also interested in archaeology and is able to interpret old texts.