Seulgi yawned wide after making orange juice for Irene. She used to make it for Irene every morning after the two of them decided to live together. Why orange juice early in the morning? Because Irene can't even drink coffee. Why she can't drink coffee? That, Seulgi didn't know. All Seulgi knows right now, she's living with a princess & she will be this princess' slave for the rest of her college life. 

Irene is Seulgi's bestfriend for almost 10 years now (that's how Seulgi would love to believe but seeing how Irene is treating Seulgi, you know y'all will become unsure). Irene is older than Seulgi. Seulgi is in 1st year & Irene is in her senior year now. Well, they started to become bestfriends after Irene saved her from drowning in a resort before. It seemed like a cliche or something you will see in most fluffy movies, but yes, that's how they become bestfriends (?). "Remember.... I saved your life..." That's what Seulgi always hear everytime she disagrees to something Irene says. But, Seulgi won't mind it all, that's the treatment she had grown when the two of them started to agree to become bestfriends. Yes, bestfriends, at least for Irene. But to Seulgi? She becomes unsure -  in a flash - of how she sees her Irene unnie, anymore.