The third eldest Sugimoto sister.

Kuri is a rather cynical and dry character. She is the only one in the family who does not spoil Yasuko by letting her do whatever she wants. She is very aware of Yasuko's selfish nature and is concerned about her sister's relationship with Fumi as she knows Yasuko will eventually hurt the younger girl.

She enjoys smoking.

Kuri also attended Fujigaya as did all the elder Sugimoto sisters. She was also subject to admiration from other girls though she never indulged any of them and ignored them for the most part. Her best friend was in love with her, but she never was privy to this.

Kuri was also in love with Kagami, though nobody except Kazusa and Yasuko seemed to be fully aware of this. Yasuko eventually, out of spite, lets the cat out of the bag and eventually even Shinako finds out about it. Unlike Yasuko, she never told Kagami how he felt as he is betrothed to her older sister.