Being a successful CEO, you get tons of proposals from investors, companies that want to invest and many more. But what if you were offered a proposal you can't accept, just yet, to be exact, a marriage propsal. Do you back away or you stay? The thing is you think to yourself, is it really a marriage proposal or a buisness proposal instead? 

Sulli got offered a proposal that she can't back away.  Her old time crush, still is, Minho suddenly called her up, to hang out.  Sulli thought that him saying this is out of the blue. Sulli and Minho hardly talk, correction, they never talk. So what made him want to hang out?