Hong Eunchae and Karina have displayed adorable sisterly vibes.

On an online forum, netizens are buzzing over the heartwarming bond between LE SSERAFIM's Hong Eunchae and aespa's Karina. Recently, the two K-pop stars took on a unique challenge involving plastic bags, and their delightful chemistry stole the spotlight.

The challenge required participants to skillfully grab two out of three floating plastic bags consecutively without letting them touch the ground.

According to the original poster on the forum, Karina also dubbed the video below as her own "flirting video."

In the clip, although she undergoes some difficulties with the bags, Karina still leaves fans speechless with her mesmerizing beauty at the end.

On the other hand, in another video below, Hong Eunchae exhibited her quirky knack for effortlessly tackling the challenge!

Reactions include:

"OMG Karina has attacked me with her beautiful face"
"LOL Why are they doing this lmao"

"Eunchae's facial expressions lol"
"LOLOL why is Eunchae so good??"
"Why is Eunchae so good at this lololol"
"They are so freakin' cute"
"This is hilarious lol"
"Why is Eunchae good, though"
"Karina was just FLIRTING omggg"
"I just love seeing these beautiful people having fun together"

"They are so beautiful"
"I love their chemistry together"

What are your thoughts?