Dia Kurosawa

Dia Kurosawa (黒澤ダイヤ Kurosawa Daiya) is one of the nine main characters of ''Love Live! Sunshine!!''. She is third-year in Uranohoshi Girls' High School. Her image color is red. She is a member of AZALEA, sub-unit under Aqours.

Background
She is a third-year student who is the president of the student council. She is from an old family involved in fishing management whose name is well-known around the sea. The Kurosawa family also owns a number of companies including real estate, entertainment, human resources and restaurant management.

Dia has a younger sister named Ruby Kurosawa.

In the anime, Dia initially rejects the idea of an idol club because of Chika's incompetence and inexperience, chastising her for her lack of idol knowledge. It is later revealed that it was her past failure as a school idol that caused her to try and prevent Chika's idol club from happening.

Personality
Dia is a very refined and mature young woman who tends to speak in a formal style of Japanese. She regards all of her friends with politeness, referring to each of them as "-san." Hardworking and a bit of a perfectionist, Dia dislikes it when things are done sloppily or incorrectly. She is also very meticulous regarding small details, as far as going on tirades regarding the unorthodox reading of certain Kanji.

Though always trying to remain calm and collected, she tends to become overly zealous when school idols are involved, as she is very passionate about the subject. She wants nothing less than total success from Aqours, and constantly pushes herself and her friends to be the best they can possibly be in order to achieve their goals. Despite being short-tempered and brash at times, Dia genuinely cares for each of her friends, particularly her younger sister Ruby, whom she is very protective and nurturing of. She has a habit of scratching her mole whenever she is telling a lie.

Clubs and Hobbies
She is Uranohoshi Girls' High School's Student Council President. She is skilled in playing the Yamatogoto, and Kitsuke, the art of wearing a kimono. Her hobbies are watching movies and reading. She is also revealed to be an avid fan of school idols, namely Muse, although she refused to admit it at first.