User blog comment:General MGD 109/Shōjō?/@comment-4807493-20120405204712

Shojo Wikipedia

The Shojo is described in the above article as a "Japanese sea spirit". In some senses this is correct, but the Shojo is actually a Yokai, which are "Supernatural monsters". Yokai themselves, as I understand it can be both friendly, neutral or malovent, and there are many different classes/types of Yokai. There have been other Yokai in the series - the Okami and the Kitsune - which are both considered more powerful monsters.

Yokai Wikipedia

Hope this helps