Heart Pairing viewers are criticizing the newly premiered dating show due to the visible age differences between male and female participants, as the oldest male contestant is 11 to 15 years older than the women.

The show features four women and four men, all professionals in various industries.

The oldest woman on the show is Lee Se Yeon, a lawyer born in 1995.

Other female contestants include Bae Chae Eun, a researcher born in 1996;

Ju Han Eul, a dancer and beauty model born in 1998;

and Moon Ji Won, a Samsung employee born in 1999.

The online response has been immediate and critical, with many looking unkindly at the age imbalance among cast members.

Online reactions as per Koreaboo, have been swift and critical, with many netizens expressing concern over the cast's age imbalance.

"Seriously, producers, can you balance the ages a bit?" one commenter asked.

"The age gap is way too big," another wrote. "The youngest woman is a '99 liner."

Some comments were even more pointed. "84????????? What is this age difference, are they insane?" one user questioned, while another said, "Are they kidding with this age gap? lol"

Critics say the show's casting reflects a broader issue in media portrayals of dating dynamics, where older men are often paired with significantly younger women.

While the show has yet to respond to the criticism, many viewers are calling on producers to address the imbalance in future episodes or seasons.

"Even compared to the other male and female cast members, the age difference is like 8 or 9 years; they need to balance the ages," one netizen said.

"Why are all the women so young? What are the producers doing?"

Heart Pairing continues to air amid the controversy, with social media users closely watching how the show responds to the growing criticism.