Background Info!!

"Can I be your boyfriend?"
"It will take more than that oppa but keep dreaming!" I said as I winked at him.

Kim Choon Hee, Jungwoo's little sister just debuted in SM's newest Girl group, Lunar Daisies. She is exactly like her older brother, a bundle of optimism.
Lee Mark, SM's ace idol. He is the most enthusiastic idol ever to be seen. He focuses only on his career till his eyes land on a girl.

Will flowers bloom in their hearts for each other?