Shirase Kobuchizawa

A second-year high school student who attends the same school as Kimari. She is a black-haired beauty that turns heads, but she is shy and not good at conversation. When she actually does speak, she can't help but say rather nasty things, which leads to misunderstandings. She has few friends and is treated as an oddball at school. At school, she is secretly called "Antarctica."

(Source: Anime News Network)