Yuuki is a second-year at Fujimi High School.She is regarded as the sexiest student in their school. She was known to have some "strang talk" surrounding her at school. She escaped with Fujimi Academy's other survivors and stayed with Shidos group, finding pleasure in their debauchery.She has been manipulated like the others that was in Shido's group. She helped Shido enter the Takagi compound by using her sex appeal, but she was forced to leave like everyone else that came with Shido.She has also survived the accident Shido had after the EMP and had subsequently escaped. After that, she is later seen at the school where the evacuation is taking place.