It should be a special treat for fans as the upcoming episode of 'Superman is Back' will feature Song Il Kook's triplets, Dae Han, Min Guk, and Man Se finally meeting up with Lee Hwi Jae's twins, Suh Un and Suh Joon!

While filming for the episode, Song Il Kook and Lee Hwi Jae complimented each other's kids on their rapid growth. The twins and triplets also surprised their fathers as they were seen hugging one another and displaying their outgoing personalities.

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The kids and their fathers participated in a flea market event, getting much attention for the adorable babies. Even with people crowding around, the babies were calm but excited, enjoying their outing. 

However, Song Il Kook and Lee Hwi Jae were seen frantically trying to make sure their kids were safe, all the while selling their products with mounds of people crowding around them. Song Il Kook commented, "When the two families met, I thought the hardship would decrease by half, but in reality, it was the opposite." 

The episode will air on November 23.