the theme is sarangnee. in korea that's a worldplay, sarang=love, nee=tooth. yes, wisdom tooth=love tooth. why they used it for mv theme? cause in korea they describe(?) first love like a wisdom tooth. they start to grow at 18-25, just like when most of us start to have a feeling/interested in someone. that's why its a match & not weird, cause the song also talk about love. its just we have different culture so we get confused haha. more or less its like that, sorry if my explanation is not clear because English is not my first/second language
