Beatrice: secretly a Touhou character.

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Beatrice confirmed for UFO

Tagged all the artists except for わをん. yuyayuyo didn't link it in his post so I suppose わをん means something like "mine".

Did some research and it seems to be a nickname of "yuyayuyo".

For those who don't know, Ryukishi originally wanted to do something for Touhou, and ZUN told him to do his own thing. The timing on this is unclear, however, it's highly like that Beato was originally a character that Ryukishi wanted in Touhou