One night while celebrating their successful comeback the twice girls decide to play spin the bottle, making Mina wondering what she is doing here... 

Chaeyoung only comes to this coffee shop for two reasons. One: She likes drinking coffee. Two: She also likes the girl that makes the coffee.

Push and pull has always been their specialty. But somehow, they always come back to each other. Always.

You are going to be the death of me.

Mina and Chaeyoung are siblings. 

I love this girl,my junior but what can I do? I don't know her feeling toward me ,all I can do is admire her from afar and look after her from afar