Eun-soo and Eun-ha, a couple, left of the popular music production company 
to shout their individuality and form a Milky Way band with Dong-eun. 
Meanwhile, Dong-eun, who was investing in coins to earn living expenses, 
even invested the band's money, but failed.The rest of the members, 
angry at Dong-eun who disappeared, 
sell the guitar that means a lot to Dong-eun...
Dong-eun returns and goes on a journey to find a guitar.
In the journey, they find sincerity to put in music.