* Taehyung is the son of the CEO of the biggest company of Seoul and soon the CEO And Y/n is the daughter of the CEO of the biggest company of Busan. And soon to be the CEO of her dad company. But she doesn't know about it. Her dad and Taes dad are enemies(and cousins) because the grand father of them just gave a check to Y/n father and Taes father got jealous and tries everything to destroy the company of Y/n father. Tae want to make his dad dreams come true so he tries to work hard and just be focused on his work to make his father happy and be good son. And Jungkook doesn't know about all of that because he is Taehyungs stepbrother (from the same mother) .their mother died and Jungkooks father too so Jungkook stayed with Taehyung and his dad because they were always in good terms. Y/n and Jungkook are best friends. Jungkook is trying everything to protect her. Y/n doesn't know about anything and she doesn't know that the company will be hers soon. Jungkook doesn't really care about the companies all he wants is to live peacefully.