Nana Ogasawara

Nana performed the "Sachiko Ever After" ritual for fun with a group of friends and high school students, sending them to Heavenly Host Elementary School. She found herself trapped together with two of her friends, Chihaya Yamase and Nari Amatoya, with her other three friends nowhere to be found. Although she lacks self-confidence, Nana is an intelligent, talented and thoroughly competent individual who quickly befriends Mayu after learning that they're both active members in their respective schools' drama clubs. Despite being roughly the same age as Yuka, Nana acts significantly older and wiser, giving the impression that she's "mature beyond her years." (Sources: corpseparty.wikia)