This is a real video. The objects are not functioning like balloons. So they're unidentified. Graded B.
This is to be expected, especially in Japan right now where their way of life may be changing drastically, and historic events are unfolding...
...and geologically, it is a powder keg right now. This place has not stopped shaking for weeks and weeks, and they are not small shakes either. Keep watching, and don't ever forget that Japan was once an economic power with a rich culture.
In a nation of people who always have a camera going, it looks like this may be something. Is there a translation? Could it be those Chinese lantern balloons?