Five men who lead the Korean musical society gathered for the tense first script reading of the musical “The Story Of My Life”. Ryu Jung Han the perfectionist, full of concentration from the first day of practice, Lee Seok Joon who delicately challenges him, Shin Seong Rok who decides he is the mood lightener, Lee Chang Yong, frozen tight in front of seniors that look like stars to him and Shin Chun Soo who got them all in one place. Within a circle of tension, Jung Han and Seong Rok start practicing the role of Thomas and Seok Joon and Chang Yong the role of Alvin. The youngest Chang Yong carefully approached Seong Rok to get closer to him but Seong Rok isn't happy about being paired up with a newbie. Meanwhile, Seok Joon falls into a slump as he gets mixed critics about his current performance and runs into trouble with Jung Han about everything starting with the product evaluation.