Kasumi Nomura

Kasumi Nomura is one of the main characters of Asobi Asobase series. She is Olivia's and Hanako's classmate and one of the three main characters of the series. She is mostly depicted as a quiet and shy person, but possesses a scary personality when she becomes serious. She is a member of the Pastimers Club.

(Source: Asobi Asobase Wiki)