|School||A Junior High School (former)|
|Physical and Vital Statistics|
|Manga||Volume 3 Chapter 12|
Kurumiko is a middle school girl who is introduced as a popsicle vendor at the beach. Even though she was orphaned when her parents, who were part of the crew of the Premium Anberial died in the accident, she feels guilty that Souta had to endure so much as the lone survivor. When she and Souta are later trapped in a cave, Kurumiko loses hope but Souta saves her by inviting her to live at Quest Dorm as his younger sister. She becomes the clergy character in Souta's party and her flag is usually one of story advancement.
Although she is occasionally childish, Kurumiko works really hard to provide for herself because her parents taught her not to rely on anyone. Before she moves into Quest Dorm, she keeps Souta company because they were both orphaned and because he bought popsicles from her.