Having lost his parents in a car crash, Yuuri is left to live in the mansion on his own. One day, a beautiful maid, Lilith, shows up, offering to work for him for free.
She's been on my mind so 
much since she arrived
كانت على بالي منذ وصولها
Seit sie hier ist, denke ich so oft an sie,
Pienso tanto en ella desde que llegó
Pienso tanto en ella desde que llegó
Depuis qu’elle est arrivée ici,
Da quando è arrivata,
Ela tem estado na minha mente
desde que chegou aqui
Как приехала, 
из головы у меня не идёт…