Ambiguous tag.
- For the artist formerly tagged here, see Watari Yuu (Morigoya) or Watari Yuu (Haskey).
- For some potential artists named watari_yuu: watari_yuu_* | *_watari_yuu
- For some characters named watari_yuu: watari_yuu_* | *_watari_yuu
- For some copyrights named watari_yuu: watari_yuu_* | *_watari_yuu