The Nishimura Family, is a very wealthy family, and Riki is their heir, Few years ago, he lost hi "step "sister due to mysterious circumstances, his parents and grandfather looked for her everywhere, but they couldn’t find her, he doesn’t really remember her, and he doesn’t want to, because if she was still present she would’ve been the heir instead of him, so her absence was a good thing to him, but things didn’t go as planned, years later after Riki grew up and became the a ceo of the Nishimura companies and took after his father and grandfather, his step sister Showed, after years, they found her, and she was back in the family grand mansion, he hated her existence and he wished she was dead, Riki was also a part of the mafia, his job requires many sacrifices, and if his enemies found out about his stupid step sister they will surely use her against him, it’s not like he cares about her but if they did , his family would disown him, This morning Riki’s parents and grandfather and His step sister Natalia, were all sitting in the breakfast table, discussing about the company and what’s going on in their business and how Riki is doing, and suddenly His grandfather told him that Natalia will be a co ceo for the Company