Taken from In-Game Character Profile:

Kaoru - A second year at the private girls' school, Seishin High. Friends with Ami, Akira's sister. She loves researching ghosts and the occult. In spite of the more reserved air around her, she's quite strange; she's bold and fears nothing. She strongly favors gothic lolita clothing.

Momo - An idol who's gained popularity on TV recently. A solo artist, her age is not publicly known. Utilizing the end of the century, she debuted as an occult idol and is the main actor on a comedy show called "Scary Stories of the Classroom". Her popularity quickly rose among the younger audience, and she stars in a number children's shows, soap operas, and movies. She will occasionally work as a bikini model as well. In a movie called "After School Scary Rumors" she debuted as a singer, and the theme song 'Wander Rabbits' became an unprecedented smash hit. Her selling points are said to be her mysterious, occult beauty created by her doll-like appearance and manner of speech. She often works closely with the idol group Love & Hero, who she previously considered her competition.