Leeseo: Did you bring lunch today?

Gaeul: Why are you asking that, am I supposed to eat your food?

Leeseo: Oh, looks like not everyone does that

Gaeul: Does what?

Flashback:

Leeseo: Woah! Why does your lunchbag looks so big?! You must've packed a good meal

Yujin: What? I just carry this around because it looks cool on me