Futakoi Alternative

Futakoi Alternative is a Japanese anime television series by Feel and Ufotable. The series ran for 13 episodes from 7 April 2005 to 30 June 2005. Futakoi Alternative tells the story of Rentarō Futaba and his detective agency. One day a set of twins, Sara and Sōju, show up at his doorstep. They move in with him and work as secretaries for his agency.