My seven sisters are all stunningly beautiful

I have seven beautiful elder sisters who love their little brother very much, but they don't know that I have long been a world-shaking king! The first sister, Hailee Ye, is a CEO with a cold temperament! The second sister, Elsha Lin, is a skilled doctor! The third sister, Sally Liu, is a seductive assassin! The fourth sister, Cella Wang, is a beautiful reporter! The fifth sister, Karin Chu, is very mysterious and unpredictable! The sixth sister, Vanessa Xiao, is a famous actress! The seventh sister, Felly Luo, has an extraordinary identity... Fifteen years ago, you treated me like a sibling, and fifteen years later, I will protect all of you!