Why do we cling to what harms us?
Helena is desperate, she needs money to pay off her mounting debts as she has been orphaned and must take care of her younger brother who frequently falls ill.
A position as a presidential secretary at INDUSTRIAS ALLER S.A. could change her life, but Helena never thought that an essential requirement would be having to endure the daily presence of the company's CEO, Sebastián Aller, eldest son and heir to almost all the wealth, as well as being an arrogant and narcissistic ogre.
Helena's desire for a better life will intersect with Sebastián's desires, who rejoices in the fact that his wealth will increase by entering into an arranged marriage with his new European wife, until a new clause in the contract that his lawyer forgot about appears as a stumbling block. Sebastián fears not being able to fulfill this new requirement, risking losing everything and leaving his envious and resentful younger brother Alan as the new CEO, who will stop at nothing to destroy his life.
Will Helena be the one to help Sebastián fulfill this clause? 
Helena does not know how far she will go to ensure her brother has a better life.

My Brother's In Law Sweet Secret. Part II

Helena arrived from school exhausted, but with a hint of hope, she knew that she had done well on the anatomy exam, although while she was solving the questions, which for her were a piece of cake, she had not been able to stop thinking about that mysterious man who it constantly distracted her from...

1- A man in my way

2- A mysterious heroine, Helene

3-  We will see us again

4- Now I´m the boss

5- Night Dancer, In Danger

6- At your complete mercy

7- Where I am?

8- I propose you a deal

 9 - Erik Black

10 - Training

11 – Probe me

12 - First time

13 - White

 14 - I would never allow it

15 - Do not even try

 16 - Disappointment

17 - Erik Black

18 - You won this battle

19 - Jealousy

20- Somethoing silly

 21 - Wish 

22- Are you virgin?

23 - I want you to remember tonight

 24 - Exquisite flavor

25 - Destroyed

26 - I know what you did

 27 - Where is Helena?

28 - Come with me

29 - I'll kill you

30 - Heir	

31 - The truth

32 - Leader and lover

33 - Dessert

34 - Expert

 35 - Confession

36 - Ambush

 37 - save yourself

38 - A big lie

39 - The heiress

 40 - A dagger in the heart

 41 - Is she...?

42 - Treason

43 - Im Sorry 

44- Before it is too late 

 45 - Run for your life

46 -  To the rescue

47- The only hope

48 - Bye

49- Thank you, next.