Sumire Sagisawa is a main character in the yuri visual novel Osananajimi to Tenkousei to Atashi to Natsuzora no Asterism. Sakura's shy childhood friend who has been appointed to take care of her. Polite and serious. She's a member of the class committee. Her grades are always around the top 30. Her specialties are mathematics and home economics, yet she's not good at history and chemistry classes.
- Since her childhood, she has been in love with her friend Sakura.
- She often cares about Sakura.