Someone help me please! Im looking for a yaoi manga, i read it once so i totally forgot th...

Someone help me please! Im looking for a yaoi manga, i read it once so i totally forgot the title. I only remember bits of the story. Its about a salary man (i think) who fainted (m not sure) and was saved by a younger guy and took him to his condo. There, he ragained his consciousness but the younger trapped him inside the house or more like kidnapped him. He wouldn't allow the salary man to get out of the house even though he kept on asking to let him go but the younger one just kept on raping him. It turns out the younger one has been in love with the guy and has been observing him for quite a while. I think the condo is just in front of the salary mans working place. Help me please! Been wanting to reread this manga again.