Today is Taeyeon's day off, usually she's just lazing around and resting at home. But not for today, she wants to take a walk out of the house. Taeyeon decided to go to her old campus. She walked around the campus and from a distance she saw her sister.

Nayoung was busy with her paper work, she's having a discussion with her friends. Books and papers scattered in front of them, Nayoung looked serious when she was talking. Taeyeon watched her quietly, she felt her sister was working very hard, she was proud of her. She didn't realize that she had sat for an hour just to watching her sister.

It's almost time for lunch, Nayoung finished the discussion. She tidied up her books and walked into a hallway. Taeyeon thought Nayoung would go to the cafeteria for lunch, but she was wrong. Nayoung went to the library. Taeyeon followed her. Nayoung began to open the books that she had taken from the bookshelf, read them and write summary on her book. She looks stressed, didn't move from her chair. Taeyeon who sat in the distance became a little worried, she went to Nayoung.

"You're not hungry? It's almost lunch time" Taeyeon said

Nayoung who was reading a book, looked at the place where the voice came from "Unnie!" she was shocked, almost fell from her chair "what are you doing here?"

"I'm bored at home, so I take a walk and come here. I miss my school days"

"Isn't it your day off, unnie? You have to use your free time well"

"Why? You don't like to see me here? Ok, I'll go" she younger sister, pretending to be disappointed

"Ah unnie, don't be like that. Sit down" Nayoung grabbed her sister's hand and dragged her to sit down, "Don't be mad at me" she said with an aegyo, she didn't want to make her sister mad

"Don't act like that, it's not suitable for you" Taeyeon said, she smiled

"Are you not hungry? It's time for lunch. Let's eat" asked Taeyeon

"No unnie, I have to finish this first because I have class after lunch time"

Taeyeon saw what Nayoung was doing "Need a help?"

"Can you finish this unnie?" she put her book infront of Taeyeon

"Of course, it's easy" Taeyeon taught Nayoung how to solve the questions until she understood and finished everything

"Wow unnie, now it looks easier for me to understand. Yeoksi unnie is the best" she gave her thumbs up. There's not much time left for lunch, so Nayoung will went to the next class.

"Lunch?" Taeyeon asked her

"I don't have time for lunch, unnie. I'll eat later after my class finished"

Taeyeon remember she bought some kimbab and juice on her way. She gave it to Nayoung

"Then, take this. You can't miss your lunch, I don't want you to be sick" she smiled

"Thank you unnie. I'm leaving now" Nayoung hugged her and went to her class, leaving Taeyeon alone in the library.
-

Taeyeon wondered what the twins were doing. Have they had lunch? Do they have classes after this? What are they doing now?

Taeyeon sent a message to Sejeong

*Sejeong, where are you? what are you doing?*

Sejeong who was with Chungha looking at her phone and read a message from Taeyeon

"Who?" Chungha asked

"Taeyeon unnie" showed the screen to her

*I'm at campus unnie. I just finished my class* she replied it

*Just finished? It's past lunch. You do not eat?*

*I'm just going to eat now, the class was extended because our professor can't come for our class next week*

*You have no class after this?*

*No unnie, why?*

*Chungha?*

*Same with me*

*Come to the cafetaria with her now, wait for me there*

Sejeong confused. Chungha saw the look on her face in confusion "Why?"

"Taeyeon unnie told us to go to the cafetaria and wait for her there"

"Unnie is here?"

"I don't know, maybe" she's shrugged her shoulder "Let's go" the twins went to the cafetaria.

-

"Unnie" Sejeong waved her hand to greet Taeyeon. Taeyeon came and sat next to Chungha. Chungha hugged her

"What are you doing here unnie? Shouldn't you rest on your day off?" asked Sejeong

"Nothing, just walked around. Have you ordered your food?"

"Not yet"

"What are you waiting for? Order some food now, unnie will pay. You haven't eaten lunch yet, right? I don't want you to be sick" Taeyeon really care of her sisters

"What do you want unnie? I'll order it for you" Chungha asked her sister

"Anything good, but I want melon juice for drink"

"Me, ramen and cola" said Sejeong

"No! Don't eat that. You have to eat healthy food. Chungha, just orders some healthy food for her and apple juice" ordered Taeyeon, Sejeong pouting

"You hear that you should eat healthy food" Chungha put out her tounge, and went to order their foods

"Unnie" Sejeong whined

"Why? I just want to take care of your health, you have to eat some healthy food to gain your strength" told her with caring eyes, Sejeong knew her sister care of her.

Three of them eating together, while talking for a long time about their campus activities. Taeyeon was very happy to see her twin sisters active in various activities at the campus. Taeyeon is grateful because the twins are growing up well, They able to take care of each other, help and encourage each other. 

"Unnie, I have an appointment with my friend at the dance club. Is it okay if I go?" Chungha said

"Me too unnie. There is a group assignment that we have to finish" said Sejeong

"It's okay. I've been happy to be able to eat with you like this. Your activities are more important" Taeyeon smiled, she really felt happy

"Okay unnie, we're going. Thank you for the lunch" said the twins. They hugged her sister

"You're wel