In Yakuza tradition,daughter was seeing as a big ashamed and wortless compare to son

When you were born,your mom die and Jonggun bring his 7 year old son that he had with one of his mistress.Since that,she was often being neglected and left out

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Its your birthday but you decided to end your life by stabbing a sharp knives on her stomach,when your sight darken you start to feel happy but not too long after that,you wake up in Jonggun Bedroom with him sitting beside you