バブルへＧＯ！！タイムマシンはドラム式

It's 2007 and the Japanese Ministry of Finance have calculated that the economy will collapse in two years' time. They intend to prevent this by sending home appliance designer Mariko back in time 17 years using a time machine she accidentally invented. However, things don't go as planned and Mariko's daughter, Mayumi, is also sent back to find her mother and save Japan's economy.