P.S I'm going to add Momo as the loan sharks lead mafia and the rival of Sana for Dahyun, Tzuyu as Sana's bestfriend and Jihyo as Chaeyoung and Dahyun's new friend, Enjoy!

Mina and Chaeyoung rarely talk, the same with Dahyun and Sana 

"A SNAKE!" Dahyun screamed "Snake?" Chaeyoung asked "What?" The 3 asked calmly "I'll chase it away" Chaeyoung said calmly as she chased the snake outside "It wasn't poisonous so I chased it away" Chaeyoung said "You know I'm afraid of sanakes" Dahyun said with a sigh "Sanake?" Sana asked "Sanake...LOL" Mina said while laughing "That's a good nickname for Sana unnie" Chaeyoung said "I mean snake not sanake" Dahyun said and apologized to Sana "I'm sorry" Dahyun said with a bow "It's okay" Sana said as she petted  Dahyun and realized what happened at the dressing room incident, Sana stopped and left "What's wrong with Sana unnie?" Chaeyoung asked "That was my fault" Dahyun said "That's why she was acting like this" Dahyun added and headed straight to her room and Mina too

{The next day, classes}
"Hey Chae... Let me copy your answers" Dahyun said "Here" Chaeyoung said giving her answers "We have a transfer student today" The teacher said while Mina was sleeping and Sana was secretly eating in class "Her name is Park Jihyo" The teacher said "Sit beside Kim Dahyun" The teacher added as Dahyun stopped copying answers "Thank you" Dahyun thanked Chaeyoung "Hello" Jihyo said politely "Hi" Dahyun said happily "Who is she?" Jihyo asked referring to Chaeyoung "I'm Son Chaeyoung" Chaeyoung said "Call me Jihyo" Jihyo said as she sat beside Dahyun "Number 40 answer?" Dahyun asked quietly as Chaeyoung kept giving answers again

{Lunch break}
"Jihyo unnie sit with us" Dahyun said pointing to a table where Mina and Chaeyoung is waiting quietly "Oh hello" Sana said as she brought a girl "Who's she?" Mina asked "She's Chou Tzuyu" Sana added as they introduced themselves (Since I'm too lazy to introduce everyone) The 6 of them opened their bentos "Yay Sushi!" Sana cheered happily as Mina just stared at her sushis "Your cooking is really good Chae" Dahyun said happily "Mina unnie what's wrong?" Chaeyoung asked "N-Nothing" Mina said as she ate all her sushis quickly and left "I'll follow her" Chaeyoung said "Okay" The 4 of them said as she saw Mina in a empty classroom "What do you want? I've already payed all her debts" Mina said as Chaeyoung tried to overhear the disscussion "Oh I know that you payed Son Chaeyoung's father's debts but why did you do it?" The girl asked "Because I love Son Chaeyoung" Mina replied as it made Chaeyoung's heart flutter "And who are you?" Mina asked "I'm Momo Hirai the loan shark's mafia leader" Momo said politely "Your father is the CEO right?" Momo asked "Yes and you don't have anything to do with it" Mina said "What made you love her?" Momo asked "Because she is really special than anyone to me" Mina said "What makes a drug smuggler's daughter special?" Momo said rudely "My love for her dosen't have anything to do with it" Mina also said rudely "Stay away with Son Chaeyong or I'll kill your men" Mina said as she was leaving 

Mina spotted Chaeyoung walking away 

"God she spotted me...Save me"

Chaeyoung thought "You heard everything?" Mina asked "Y-Yes, I mean no" Chaeyoung said "Come with me" Mina said as she grabbed Chaeyoung by the hand and walked to the small school's garden and no one is there "Don't tell anyone about what you just saw" Mina said "I have no reason to" Chaeyoung said "Now that you heard everything" Mina said with serious eyes "I'm sorry" Chaeyoung said "For letting you pay my father's debt...For saving me during the loan sharks hurting me, I don't know how to pay you so...You can do anything...To me" Chaeyoung said crying as Mina pitied the small girl, instead comforting her with a kiss, she did it with a tight hug "I should be the one thanking you" Mina said "Thank you for existing" Mina said happily

{At the bushes}

The 4 girls are in tears because of the drama of Son Chaeyoung and Myoui Mina, as they realized that they should stop stalking them

{At Mina and Chaeyoung}

"She's so beautiful even when crying"

Mina thought 

"I thought I'm all alone in this world...But I was wrong"

Chaeyoung thought as she realized how warm the hug was "Thank you" Chaeyoung finally said "We should go before they get too worried" Mina said 

When they returned, they realized that the 4 of them were gone