Kadro (9)
Kim Sae-ronJung Ah-rin
Cha Eun-wooCha Eun Woo
Moon BinMoon Bin
Kim Myung-junMJ
Park Jin-wooJin Jin
Park Min-hyukRocky
Yoon San-haYoon San Ha
Seo Kang-joonAh-rin's elder brother
Choo Ye-jin[Herself / San Ha's girlfriend]Kim Sae-ronJung Ah-rinCha Eun-wooCha Eun WooMoon BinMoon BinKim Myung-junMJPark Jin-wooJin JinPark Min-hyukRockyYoon San-haYoon San HaSeo Kang-joonAh-rin's elder brotherChoo Ye-jin[Herself / San Ha's girlfriend]