On the day of the entrance ceremony, Kazu Matsuhashi meets Yajima, who looks just like her. Everyone mistakes them for siblings or twins, which annoys Kazu at first… but what happens next?!

In order to play football with his favourite senior from his middle school, he enrolled into the high school following his senior. The grumpy goalie proclaims his talents for goalkeeping after the very first meeting and sinks him into the toughest training ever. Is it really for training purposes or ...?

Vol. 1: Onna no Mondai Teiki (2002) Vol. 2: Onna no Mondai Teiki Sex Hen (2002) Vol. 3: Onna no Mondai Teiki Jiken-hen (2003) Vol. 4: Onna no Mondai Teiki Kekkon Trouble Hen (2004)

Satomi Yuu works as a home care giver and her motto to the family and patients is Donmai.