<On Hold> Hwang Hyunjin and Hwang Y/n are siblings . They both have a very strong bonding with eachother . Hyunjin became cold to world after their father passed away , but shows his soft side only to Y/n. Y/n on the other is a cute , cheerful girl who never fails to cheer her brother . How will they react when they will know that their mom is getting married again. What more difficulites wil they face ? Will they bond with their stepbrothers ? What more secrets will they discover ?