16-year-old Tsukimi Hina decides to get a part time job as a maid, and successfully passes her interview. One thing though: she can't use modern technology inside the house whatsoever?! Which means no vacuum...

It happened in the blink of an eye. Rikka's world turned upside down when her school field trip bus flipped and plummeted into a lake. Everyone inside that bus drowned... except for Rikka, but she wasn't sav...