NCT Dream Chenle and aespa NingNing truly radiated sibling energy in their latest interaction! The two stars dominated Twitter on Friday after bickering on the artists' messaging platform, Bubble.

On September 17, the names of Chenle and NingNing, both Chinese K-pop idols from SM Entertainment, suddenly trended on Twitter — but their nationality doesn't have anything to do with it!

The NCT Dream and aespa members caught the attention of internet users after "bickering" on SM Entertainment's artist's messaging service platform, DearU Lysn Bubble.

Did it result in another "Rooftop Fight"?

NCT Dream Chenle and aespa NingNing 'Feud' Radiate Sibling Energy, and The Reason of Their Fight is Hilarious

On Bubble, Chenle took on the platform to communicate with his fans. The singer talked about his daily life and co-members.

It is not a secret that NCT Dream – or NCT, in general – members are all game enthusiasts, leading Chenle to share some stories about it, such as PUBG.

This is when Chenle mentioned NingNing, saying, "NingNing isn't as good as me, definitely. She just can't."

As if teasing the "Next Level" singer behind her back, Chenle added, "I played PUBG with her last time because she said she was good but, in the end, it's a long story haha."

Exposing his secret, the "Hot Sauce" singer admitted that he would go offline when NingNing will ask him to play with him again.

As a result, K-pop fans were thrilled by his messages, commenting, "Is it okay to expose NingNing like this?" and, "Not at Chenle 'dissing' Ningning hahaha."

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'Feud' Erupts: aespa NingNing Fires Back at NCT Dream Chenle

Apparently, aespa NingNing has her eyes and ears everywhere that the news reached her immediately.

Unwilling to back down from her labelmate's "dissing," NingNing, whose gaming skills were exposed by Chenle, said, "I heard that someone said they play better than me?" adding, "Don't believe it."

If this ain't the cutest response – what will it be?

K-pop fans and internet users couldn't help but find SM Entertainment's Chinese-line interaction hilarious, prompting them to leave comments, such as, "Chenle is the cutest boy bestfriend that you will have," and, "Indeed, NingNing will not sit back."

In particular, NingNing and Chenle have been close friends even before their debut. Thus, seeing how comfortable they are with each other despite the senior-junior relationship made fans happy.

Due to this, a remark also earned thumbs up from fellow K-pop fans: "This is why we should normalize female idols interacting with male idols."

Meanwhile, aespa is currently preparing for their first mini-album "Savage," set to kick off in October.

READ MORE: aespa Ningning Gains Attention for Her Striking Weight Loss in New Instagram Photos

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Written by Eunice Dawson