姫事(himegoto) app for iPhone and iPad
Girls mandatory item, the application to make a sound of running water.
In Japan, there is a proverb, "there should be courtesy even between close friends". It means that is is important to show good manners to your boy friend and family.
This drowns out the unpleasant sound by the sound of running water. Additionally, it is water-saving, eco-friendly, heartfelt application.