Kokona Haruka is one of the canon female students of the game.
Kokona Haruka wears the default female school uniform. She has purple colored hair and wears a drill on each side of her head. Her eyes are purple. She have the largest bust in game.
She is nice, loyal, and seems to have a suffering life. She has the social butterfly persona.
It is implied she is involved with compensated dating because of her father's dept problems. Her father got a loan from a company called "Loan Sharks," a company that puts there clients in dept. "Musume Ronshaku" another student her father, is the head of the company.
Saki is Kokona's best friend and loyalest confident.