Futanari Maid Chan and the Two Curses

The main character, a maid, fails at work all the time... Every time she fails at work, she is punished by the head maid. One day, a fellow maid who cannot forgive the maid's punishment runs away with her. As a result, the maid is cursed with an erotic curse. In order to break the curse, the protagonist sets out on an adventure!