Dia Kurosawa is one of the main characters in Love Live! Sunshine!!. She is the president her school's student council and a member of the idol group Aqours. She is also the childhood friends of Mari and Kanan. She also has a little sister named Ruby.
- She often gets flustered when Mari tries to hug or grope her.
- She hugs Hanamaru in an official image.
- She gives Mari a kabedon in one of the episodes.