Talk:Sion Ogura/@comment-25172964-20201113015044

This is just conjecture from the latest manga chapter so nothing is proven, but we can deduce something from it:

Ogura Shion original real name is Gushion, a demon who controls knowledge, book, and time. Gushion was a resident of Tama City during Sakura Chiyoda time when still active as Mahou Shoujo and before Momo moved into Tama City. she maybe also one of the protectors of the Bureau of Darkness that maybe is already destroyed in the main story timeline. Gushion real form is a book that she always carries around, while the human Gushion is like some kind of interface.

One day, Sakura goes missing, Momo comes to the city to look for her, but she was surprised that another Mahou Shoujo claiming that she is Sakura's friend lives in Momo and Sakura's house.

My guess is this Mahou Shoujo is evil, she wants to obliterate all demons in Tama City. Momo fights her and managed to beat her but maybe with some sort of sacrifices, this event is subbed as "Momo save the world" event by Anri in EP 1 anime, and also the reason why Momo no longer passionate about being a Mahou Shoujo, maybe she learned the dark side of this Mahou Shoujo business. One of that Momo sacrificed (failed to protect) is Bureau of Darkness and Gushion, Gushion was killed and the Bureau of Darkness was destroyed.

But before dying, Gushion ripped a page from herself, and that Page incarnate as Ogura Shion that befriends Shamiko and the gang.