You walk so hastily in a busy street in Seoul, while you are holding your phone in your hand and start running, you bump into someone who is tall and quite muscular. he is Kim Myung Dae, better known as BJ MD. but since no one knows his true face, you are the only one who recognizes him.

please, watch your step, will you?

He spoke calmly and smiling kindly, like he does not care that you just bump into him. He even stretches out his hand to help you.