For the Love of His Family

Colin Michal's family was brutally murdered in front of him and just as he was about to die, he called upon the help of demon to get revenge against those who killed his family. Now the demon, Klaus, has a contract with Colin with the price of his (Colin) soul and has raised him for eight years to be the CEO of his father's company.
Now, eighteen years old, Colin is cold and heartless boy in front of those who cross despite his effeminate features. Klaus vowed never to fall a human but why is it that when he sees Colin, his old heart start beating? And is Colin out of breath when he sees Klaus shirtless?
Stay tuned to find out.