SM Entertainment's latest girl group, Hearts2Hearts, is gaining momentum following their highly-anticipated debut.

The group officially kicked off their journey on February 24 with the release of their debut single 'The Chase' and introduced their devoted fandom with the name "S2U," affectionately pronounced as "Ha-Chu."

Explaining the concept behind the name, Hearts2Hearts intertwined the heart symbol "S2" from their English name with the letter "U," symbolizing the fans' pivotal role in the group's universe.

The revelation of the fandom name has sparked enthusiasm among fans eager to embark on this new chapter with Hearts2Hearts. While many find the name endearing, there's a playful buzz among some fans and netizens drawing comparisons to the Korean animation character, Ha-Chu Ping.

Online discussions among Korean netizens have been a mix of amusement and excitement:

"How did 'S2U' morph into 'Ha-Chu'? Oh, I see, S2=♡, U =YOU, Heart You. Ha-Chu. Lol."

"The name is so adorable!"

"It's giving me flashbacks to Ha-Chu Ping (the animation character). Lol."

"Simply adorable."

"Not sure about this one since it's quite like Ha-Chu Ping. Lol."

"Seems like they waste no time in revealing the fandom name these days. Lol."

"It's just too cute!"

"The reference to Ha-Chu Ping can be tricky online search-wise."

"Ha-Chu Ping, though?"

"I can imagine a debate if Ha-Chu Ping fans were older. Lol."

"It's irresistibly cute!"

"Their choice of S2 symbolizing a heart is genius."

"Absolutely loving the name."

Fans are rallying behind Hearts2Hearts, as the group breaks records with the second-highest debut sales day in K-pop girl group history.

Excitement is sky-high for what's next for Hearts2Hearts as they charm their way into hearts across the globe.