He used to push her away whenever she ran toward him. But now that she’s grown up and ready to walk away... he’s the one stepping forward.

From the annoying girl next door in his eyes to a shining star on campus, the 'big brother' title he always used as a shield is about to lose all its meaning. After years of denial, his stubborn heart is commanding him to finally do something... before it’s too late.

And so, the mission to erase the 'little sister' status and claim the title of 'lover' has officially begun