Ef: A Tale of Melodies.

This, the second 'EF' series is not a sequel to the first even if some characters appear in both. This is set in two different time periods. In the past we see Yuko Amamiya and her relationship with Yu Himura; a boy who she meets ten years after they knew each other in an orphanage; he learns that there are problems in her life and determines to help her. In the present Mizuki Hayama meets Shuichi Kuze; a violinist who is suffering from an illness that could kill him at any time... because of this he isn't keen to develop a friendship with her.

'A Tale of Memories' was fairly downbeat at times but this series is even darker in tone as it delves into subjects of terminal illness and sexual abuse; thankfully the latter is spoken of rather than explicitly shown. The stories are nicely intertwined and told at a good pace. There are some genuinely shocking moments. The characters are interesting and distinctively designed. The animation is stunning in similar way to that of the first season. This is accompanied by a great soundtrack. Overall I'd definitely recommend this series; although not essential I'd recommend watching 'A Tale of Memories' first.

These comments are based on watching the series in Japanese with English subtitles.