Male idols who don't even seem to know each other

This is what fans are saying after seeing the members of Bonekdo. They say that it seems like they didn't even greet each other. They say that they look so different from each other. They say that Seongho seems like he would be good at science and math. Which one of the 6 do you think he is? The answer is below!

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He's the member wearing glasses at the very beginning lol