Hm. This could resurrect the Washuu-rebuilds-Harry idea -- if she uses some of her own DNA in the mix she becomes blood relation, and the wards would extend to everywhere she was.
Or maybe she just scans Harry's house, picks up the wards, figures out at least the "reports to Dumbledore" part, and reproduces them around the house in Okayama.
Or she taps into the goddess part of herself and it becomes "just because".
As for why Harry goes back...because he doesn't have a choice, at first, because of school, and social workers, and stuff like that -- but after the first few times, maybe he asks Aunt-Professor-Washuu-Chan if there isn't a better way...
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.
Or maybe she just scans Harry's house, picks up the wards, figures out at least the "reports to Dumbledore" part, and reproduces them around the house in Okayama.
Or she taps into the goddess part of herself and it becomes "just because".
As for why Harry goes back...because he doesn't have a choice, at first, because of school, and social workers, and stuff like that -- but after the first few times, maybe he asks Aunt-Professor-Washuu-Chan if there isn't a better way...
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.