Wherein Irene- the famous cheerleader of DwiFinite University visited her little sister in the hospital but she accidentally entered the wrong room which led her to an encounter with a gorgeous lady with a beautiful voice and an antsy personality.  What will happen if you fall in love with a person who is completely your opposite?  Will you be able to endure her or will you just leave her?

Wherein Seulgi- Agent S is asked to guard the President's daughter Bae Irene, Agent S was doing a nice job but then she fell in love with Ms. Bae