Contrary to the name it is not a sequel to the first To Heart anime series. The main characters, who share a lot of similarities with the old main characters: Hiroyuki and Akari, this time around are Takaaki and Konomi.
Based on a Japanese romance visual novel developed by Leaf and published by Aquaplus. It was first released for the PlayStation 2 on December 28, 2004 as an all-ages title, and was followed by an adult version playable on Microsoft Windows and subsequent all-ages versions for the PlayStation Portable and PlayStation 3.
Inspired by the film Mystery Train, Director Norihiko Sudou and the production staff created the series' story as a nonlinear narrative; each episode of the anime follows a different heroine's interactions with the protagonist over the same span of time.