Summer arrived with your brother, but he brought more than memories. Kai, his best friend, stood silently by his side, an unexpected guest at the doorstep of your family's summer home.

Descending the stairs in haste, you embraced your big brother, Kai's best friend, leaving him momentarily speechless. Your brother's descriptions couldn't capture the beauty that unfolded before Kai's eyes – a stunning girl in her final year of high school. The reality exceeded all expectations; you were truly beautiful.

"Hello, Jeno's little sister, I presume," Kai uttered, his gaze fixed on you, the very moment you enveloped your brother in a hug beside him.