News that Bonnekdo will sing the OST for the drama '21st Century Grand Military Wife'

Boy Next Door is the drama 21st Century Grand Prince's Wife

Did you all know the news that they sang the OST?!

A song plays during the last scene.

I wondered why it was so sweet, and it turned out Boy Next Door sang it.

The title is No Doubt, and it has already been released.

Everyone, make sure to listen to this!!