Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Rosetta, who lost her old husband, who was her father's replacement, and became alone at the age of 19. One day, a young man who calls himself Leo comes to her as a servant. While spending time with him, who is a little pushy and caring, who doesn't seem to be younger, his faded life changes. Rosetta, who is attracted to Leo, but is concerned about his true face, which is wrapped in a mystery. In one incident, it turned into a doubt? "No. I can kill people without a problem. You too." That dedication is a lie or a truth -- a dangerous romance with my only servant!