A heroine. She attends the same private girl's school as Yanase. She is in the swimming club, and holds the records in the 100m and 200m backstroke. Furthermore, Shimizu studies well and had won book contest before. As she has never have a chance to talk to boys, she is a bit shy. She is also rather quiet. Being a regular swimmer, she has visible tanlines under her clothes. This, coupled with her shyness, made the naked examination in front of many people a nightmare for her.