SinB was just a simple girl living around the town. One day she wakes up with a news that her mom was planning to get married again. SinB  was frustrated about this, but she guess she cab't do anything. All she wants is the happiness of her lovely mother. Will SinB considered this marriage of her mom as blessing in disguise when she meet Yerin? Her stepsister.

This is the first time I will write  SinRin or RinB centered story.  This was a original yoonsic story, but I try writing for sinrin and give it a try. I will modify it and will have some changes. I will try my best to at least make you feel that it is SinRin slash RinB you are reading. I don't know what is the right fandom, I just saw fans fighting about RinB or SinRin in One Hallyu.