Ruka Sarashina, is a supporting character in the Kanojo, Okarishimasu series. She has short hair tied up with a blue ribbon, a womanly figure, and often wears her school uniform or casual dresses. Ruka is cheerful, determined, and passionate, but can also be self-centered, pushy, and possessive due to her fixation on finding a boyfriend to help with her slow heartbeat. She sometimes makes poor decisions and throws tantrums.