Rena is an orban-haired girl who moved to the village of Hinamizawa one year ago. She is the same grade as Keiichi and has a sort of obsession with things she perceives as cute whilst these things are usually not considered cute by others. Rena likes to go treasure-hunting in the village's trash heap, looking for cute things to collect. But there is also a scary side of Rena which shows whenever people take her too lightly and anger her. She is especially sensitive regarding anything about Oyashiro-sama.