Cursed Child's Servant

"Only you can be my servant." Renee, a girl cursed with immortality, was fired from her job for being too creepy and is now seeking employment. One day, she is recruited to be a servant for the prince. However, the prince was imprisoned due to his "curse of poison" that kills everything he lays his hands on. These two lonely individuals who hold contrary Curses are brought together by fate in this master-servant fantasy! (Source: Hakusensha, translated)