1. "Hahahaha!"
2. "Enough! Unnie, Stop laughing at me"
1. 17 years old (Korean age)
2. "Haha, I'm sorry! I just can't believe she made you both hug and apologize to one another"
3. 21 years old
1. Enrolled in school 3 years late For some reason
2. "Jihyun unnie, you don't really have to say we're girlfriends when we're actually not.."
3. "Why? Your new classmate, she has a crush on you right?"
4. "..Hmm... Yeah"
1. "I'm fine with that. All these years you've been surrounded by many bad people, ain't you?"
1. "Do come find me whenever you feel it's hard to breathe."
2. "I won't ever allow anyone to hurt you"
1. "!!!"
1. "Kwang Jihyun ah Kwang Jihyun"
2. "How dare you just give me a blank paper for the assignment and go out here with your so-called girlfriend?"
1. "Didn't I tell you no dating allowed in school?"
1. "And you, Jung Aerin. You also didn't do as what I told earlier"
2. "Have you"
1. "Forgotten all my rules?"
2. "I remember!"
1. "X No dating X No bullying X No skipping classes"
1. "Be quiet! I didn't ask you"
2. "..."
2. "I've helped you complete all the work for tomorrow"
1. "What to do now, teacher?"
2. "Best you head home first"
1. "Hmm...No!"
1. "I'm not going to leave you alone here"
2. "Then step aside, I'm not finished yet"
1. "Teacher, you seem to enjoy working in the lab so much"
1. "..Not really"
2. "It's the excitement that I might come up with new refinements for my PhD dissertation that makes me want to stay here a bit longer"
1. "You're so amazing, teacher"
2. "I'll also be working hard so that one day you can count on me too"
1. "Give me a sec, It's almost done"
2. "Yes ma'am!"
