Futakoi Alternative (フタコイ オルタナティブ, Futakoi Alternative?) is a Japanese anime series by ufotable. The series ran for 13 episodes from 07 April 2005 to 30 June 2005. The show features many of the characters from the original Futakoi, though the story and settings are completely different. A manga adaptation of the show is illustrated by Kanao Araki.

Source: Wikipedia