This is episode 69 of 71 of Bound by My Vampire CEO. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Echo is forced to marry Nikola, Venture Group's founder, as she was a "blood bag" for her sister. She discovers her supposedly old husband is young and kind; however, he forbids her from touching his bedroom coffin. Her bloodstain awakens his vampire identity, drawing her into passion and danger.