[Younger man-older woman romance + both are each other's first and only + five-year age gap][Scheming, clingy younger man versus mature, cool, independent older woman]
Ever since her grandmother died, Su Li has lived alone in this world. She has no hobbies or interests, and every day is nothing but work, work, work.
Until one day, an intern who has been subjected to workplace harassment starts clinging to her.
"Sis, can I hide out at your place for a while?"
"Thanks for recommending me for a job, Sis."
"Thanks for helping me find a place to live, Sis."
Later, she discovers that he's the "poor little thing" she took in seven years ago, and that he isn't pitiful at all.
"Sis, I'm not a kid."
"Sis, you have to take responsibility for me."
"Sis, I can't live without you."
