Just in case somebody needs to know the story (I'm not pro translator so this is just a brief outline):
When her master was at college, Onaho learned to use the computer. Accidentally she checked her master's mailbox, and there she found a promotion email saying "best-selling onaholes". Mistakenly she though her master had "affair" with those other ona-holes and started to panic. But finally she was told that what she saw was just a mail-magazine, and was promised to have a sweet date with her master....