My undefined love

A doctor who is a genius fell in love with a cute, simple but coward girl.
Bella (female lead) :- An outstanding beauty, intelligent girl, working as secretary of a domineering C. E. O (Alex) of City X' s biggest business empire Hurricane group but very coward for love. Has a stepmother (Jennifer) who wants to sell Bella in name of marriage to a lustful man (David) who is mesmerised with Bella's beauty and want to bed her.
And if Bella's problem is less she also has a stepbrother who also has lust for his step sister and molested Bella whenever she is home.
When Bella was 17 years old, her step brother (Cavin), slide his hand under Bella's panty when she was sleeping to touch her vagina but thankfully Bella woke up at time and ran out of her house for life, but what she can do being a girl who is just 17 years old having a stepmother and alcoholic father, but from then she started to live in her college form and being a scholar she got a scholarship for her college fee and indirectly she cut her relation with her family and become a secretary of his classmate Alex.