Age: 16

    Kasumi is a lovely teenage-girl. She has everything: money, lovely clothes, fine Perfumed Carp House, great friends, straight A's, and a wonderful boyfriend. Kasumi also has eighteen other sisters. They all want her hot boyfriend. Kasumi doesn't like this. So the girl has to fight back in order to keep her relationship to together and away from her sisters.

Age: 16

    Shoji's is Kasumi's boyfriend. He has loved her since junior high. The boy got a job at the House of Perfumed Carp as the keeper. It's good for him because he and Kasumi can be together more often. But can Shoji resist the girlfriend's sisters?

Age: 28

    Yuma is Kasumi's older sister. She is a the oldest of the Noda sisters. Yuma wants a man. She has been through multiple relationships. All ended in heartbreak. Yuma was about to give up. But then, she met Shoji and crushed on him. Yuma works hard and makes her own money.

Age: 21

    Michiko is Kasumi's older sister. She is a lovely artist. The woman paints many paintings. Her favorites are sunflowers. But lately, Michiko has a new interest: Shoji. She tries to have him a model in all of her portraits. Kasumi doesn't like this and is jealous to the core of Michiko!

Age: 18

    Ginko is Kasumi's older sister. She is a shy young lady with many fantasies. Most of them of her and Shoji! Ginko will stare quietly at the boy. This makes Shoji very nervous. But Ginko makes him relax in the end. She would make a nice wife.

Age: 25

    Hanae is Kasumi's older sister. She likes bondage a little too much! The dominant queen also loves Shoji. Put those two together and...... well, I'll let you finish the sentence!

Age: 23

    Sakamae is Kasumi's older sister. She is a quiet shy angel by day and a wild woman by night. She loves to party! Sakamae enjoys taking Shoji out clubbing with her.

Age: 14

    Haya is Kasumi's younger sister. She is bisexual. Her sisters know completely and support her all the way neutrally. Haya has many female crushes but her main is Shoji.

Age: 17

    Hitomi is Kasumi's older sister. She is a total bookworm. Hitomi been one since she was three. Hitomi herself has found interest in Shoji and tries to study with him. She is a really shy girl.

Age: 8

    Chikako is Kasumi's younger sister. She is such a peach. But Chikako can be a monster at times. She will scream and cry until she gets her way. The sisters try to ignore her. Chikako always wins out. She too likes Shoji!

Age: 15

    Kasuga is Kasumi's younger sister. She is a complete snob. Kasuga bosses people around. Kasumi and the other sisters want to slap Kasuga around sometimes. She likes Shoji but won't admit it.

Age: 10

    Aikina is Kasumi's younger sister. She is really hyper. This drives Kasumi nuts as well. The other girls think it's okay. There is an up-side. Aikina is athletic. In fact, P.E. is her favorite class. Aikina also likes Shoji!

Age: 22

    Maiko is Kasumi's older sister. She loves money. The woman also loves fine-looking guys. So, Maiko flirts hot rich guys for their money. Shoji's not rich, but Maiko is making an acceptation for once.

Age: 13

    Eiko is Kasumi's younger sister. She is a little drama queen. Eiko makes a big deal over everything. It drives Kasumi insane. But the other sisters don't mind. Eiko is obsessed with Shoji. Plus, she is a crybaby.

Age: 20

    Kinuye is Kasumi's older sister. She is a klutz. A flirty one at that. Every time Kinuye bumps into a guy, they fall in love with her. That's what happened with Shoji only it was the other way around. Now, Shoji can't get Kinuye to stay away from him!

Age: 12

    Iku is Kasumi's younger sister. She is a rocker chick. Her room is a rock shrine. Iku's loud music drives her sisters to the edge. She has a huge thing for Shoji.

Age: 24

    Ochiyo is Kasumi's older sister. She is little miss busy-body. Ochiyo is always cleaning the house or shopping. But she manages to make time to flirt with Shoji.

Age: 26

    Natsumi is Kasumi's older sister. She is a queen nerd supreme. But she is a vixen at night. The older sisters hound her for her secret. Natsumi giggles and says no. She loves Shoji and tries to seduce him.

Age: 11

    Megu is Kasumi's younger sister. She is a complete tom-boy. The girl loves sports, pants, and rock music. The sisters try to make Megu more feminine. She hates it but will try to be girly for Shoji.

Age: 5

    Fumi is Kasumi's younger sister. She is the baby of the family. Fumi is the most spoiled as well. She also likes Shoji too!

Age: 16

    Giichi is Shoji's friend. They go way back! Giichi is Mr. Funny-man of the series. He helps his friend out with his job at the House of Perfumed Carp. Giichi lusts after all of the Noda sisters.