Rain De Castro has been in love with her best friend, Mark Velasco, for almost the entire time she has known him, but she's clearly in the friend zone because he's happily in a relationship. Or so she thought, until the news of his break-up reaches her. Now that Mark's single again, she decides that it's time to get out of the zone. But when her cousin Lissa comes into the picture and sets her eyes on Mark, Rain feels troubled when he gets a little too friendly with her. Rain is determined to fight for what she feels this time, but is it worth the effort if it's a losing battle from the start? Will she back off to give way for her best friend's happiness, even if it means losing him to someone else again?