The Slytherin boy, Severus, looked at the stars in the bright night to enjoy his last moments in peace after the incident with Lily when he suddenly heard someone. Remus stopped him before it was too late. This leads to many encounters on the Astronomy Tower where it all happened.
Remus noticed something weird when Severus had the habit of holding his left arm close to his chest, the side where the Dark Mark was usually printed. Were the rumours true and did Severus join the Death Eaters? Dumbledore gives Remus the assignment to spy on him while slowly developing feelings for him. What happens when they find themselves falling for each other and how will Remus complete the task?