too shy to try something new by herself (even through the series she is fully determined to overcome her limitations and be a better lover to Makoto), as well as insecure about her looks; she is unaware how beautiful and charming she is. She is also the target of attention by many men (although their behavior is – compared to the women who adore her husband – mostly passive longing). She additionally has the knack of befriending most of the women whom she should consider her rivals for Makoto's affections (Makoto's colleague Makie Sugiyama is a notable exception). Yura is also a big fan of undead-themed horror movies. When she was in high school, she was a member of the Tennis club. She is voiced by Yumi Ichihara (radio drama) and Tomoko Kawakami (2002 OVA), Ayumi Tsunematsu (2014 OVA) and portrayed by Chika Inada (TV series), Nana Nanaumi (web series) and Yūri Morishita (films). Yura's 20-year-old sister. Sexually experienced and rather promiscuous (to the point where, early in the series, she keeps a boyfriend and three "sex friends" – in addition to miscellaneous flings), she constantly teases and goads both Makoto and Yura into improving their "night life". At first in an on-and-off relationship with her "number-one boyfriend", Taku Yamada, for most of the series, she eventually decides to settle down, even marrying the son of Makoto's boss Katori, though their matrimony rapidly disintegrates soon afterwards following personal differences. She is voiced by Fumie Kusachi (radio drama) and Naoko Takano (2002 OVA), Chiwa Saitō (2014 OVA) and portrayed by Ayaka Tomoda (web series) and Miyuki Yokoyama (films). Makoto's older 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 the wife. In order to appease his own sex drive, he frequently visits brothels. He is portrayed by Yuichi Tsuchiya (3rd film). Makoto's 17-year-old sister. Initially she has a rather romantic look on a relationship, and her quest for true love lets her drift through a number of affairs before she finally finds happiness with her first boyfriend, Yosuke. She is portrayed by Natsumi Kamata (web series) and Kirara Asuka (2nd film). Makoto's sister-in-law and Akira's 27-year-old wife. She is annoyed at Akira's habit of patronizing brothels. She is portrayed by Sasa Handa (web series) and Rika Kawamura (3rd film). Makoto's father. A 52-year-old