Kawaguchi published her first manga at 13. Now 6 years have passed and she has yet to produce anything else. Thinking she doesn't have enough experience to write about anything, she decides to change that. Noticing that boys' love and girls' love manga have been popular recently she decides to ask a former co-worker out to get some inspiration. Her penname is ��明日香 (same reading).
One of Makoto's work colleagues. Not married. Envies Makoto because of the beautiful wife he has. As well as Okahama sometimes acts like a pervert. Is not really attentive to his sex partners (which is discovered during the girls' talk about the worst types of men).
One of Makoto's work colleagues. Not married. Has many fantasies about women and often says vulgar things making Makoto blush. Okahama himself thought he was good at sex until girl colleagues started to discuss the types of men they hated most. Then it revealed that he had a lot of problems, f.e. thought only about himself.
Makoto's father. A 52-year-old company officer. He is overly sensitive about his sex life, and far too protective of his youngest child, Jun. (source: http://en.wikipedia.org/wiki/Futari_Ecchi)
Makoto's elder brother. A 29-year-old lawyer. He is very nosy and frequently pesters Makoto about his sex life and fancies himself as Makoto's tutor on the topic of pleasuring women. In order to appease his own sex drive, he frequently visits brothels. Is used to speak in an extremely loud voice which (along with the topic Akira usually covers) makes everyone embarrassed.