All her life Seulgi has had chromesthesia, seeing colours when she hears certain sounds. Like how the loud raindrops fall with sharp blue triangles or the thundering yellow that bellows with laughter. One day, she meets a woman and hears a sound that paints her life in colour.

“So what’s your story?” For as long as she can remember, Seulgi has suffered from prosopagnosia, unable to recognise faces. That is, until she meets her seatmate whose face is instantly clear to her.  These are the short coming-of-age tales of the passengers on flight RV0801 about their dreams, struggles and rebirths as they embark on a new chapter of their lives.

‘Bae Joohyun’. A name Seulgi hasn’t heard in a while, but a name that remains unforgettable. Of course, who could forget the name of their first love, no matter how tragic and bitterly things ended. Still, life goes on. And one day Seulgi comes to hear the name ‘Bae Joohyun’ once again, when she receives an invitation for the girl’s wedding.

After discovering the infamous Inkigayo sandwiches, Sakura decides to give her phone number to her idol, Irene. However, things don't turn out as she planned.