Ambiguous tag.

For the artist formerly tagged here, see Kouyama_Ritsu.

For some potential artists named Kouyama: kouyama_* search | *_kouyama search

For some characters named Kouyama: kouyama_* | *_kouyama

For some copyrights named kouyama: kouyama_* | *_kouyama

This tag is deprecated and can't be added to new posts.

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