The billionaire's sweet but not timid wife

Han Luo is a 23 year old simple girl who quits her job at a cafe and ends up being Castego Helios's assistant at Castego Corporation Han Lou's parents died in a car crash and she is left all alone with her 15 year old younger brother ________________________________________________ Castego Helios is a billionaire who built his company by himself from scratch and merged it with his father's business 2 years later ,his mother Castego Jennifer is a 45 year old psychiatrist that is widely known His father is 48 years old , Castego Robert retired from business and retreated to painting and calligraphy drawing Helios is a 27 year old cold and ruthless boss who doesn't like getting close to women except his mother ~Will Han Luo accept the marriage proposal from Helios