Seb stumbles upon Casti, the very person he saved and an unforgettable man who masks his despair with a playful smile. Strangely enough, Casti also reminds Seb of a woman he used to cherish.

After their break up, Arsen is determined to forget the man who ruined his life. However, things get more difficult when he finds out that he left his own heart unguarded, making it easier for Hiro to slip in and make another mess of him.