This series revolves around how Snape starts to care about Harry because of a charm put on him by Ron and Hermione.

The first story "Love is a charm" explores how their relationship changes because of the charm and what happens when it expires at the end of the year

The second story explores how their relationship develops after the events of "Love is a charm". In "Love is a haven" other paternal figures, namely Lupin and Black will threaten Severus position with Harry.