This is ... sure something!
Windy Day was such an incredible left-field weirdo delight. This appears to be set in a indoor hippie grow-op. And I'm sorry, I just can't handle an adult man yelling at teen Korean girls in Jamaican patois. Reggaeton-inspired is one thing, but good heavens.
Like many Oh My Girl songs, this grows on you after multiple listens. But it's not up to the standard of their previous songs -- not even close. Why would you cover this of all things!? Inexplicable.