According to Moonphase Diary, an anime adaptation of Matsu Tomohiro’s (author) and Nakajima Yuka’s (illustrator) light novel seinen series, 「Papa no Iukoto wo Kikinasai!」 (Listen to me girls, I am your father!), has been green-lit for production.
The light novel series currently has 7 volumes to date – with the first volume debuting on December 25th, 2009. Two manga adaptations will begin later this month:
*Synopsis: (courtesy of Animesque)
The story explains the day-to-day of a universitary student that has to live with three sisters that are not from his family: a tsundere (14 years), a little demon (10 years) and a small girl (3 years).