Himuro Yuuki

Yuuki is a girl living at the dorms whom Kudryavka knew and was roommates with for a time in Kudryavka's home country; Yuuki is half Japanese, a quarter German and a quarter Russian. She is the president of the science club at the school and came to take part in a cultural exchange program. Everyday, Yuuki is absorbed in various strange research projects and experiments and could be described as a logical genius.