I have not put the Hiragana in the Kanji field for now, because we're quite sure 渡辺愉香 is it (but not confirmed anywhere, it seems).
愉香(Yuka-san) can be seen on the comment for disc 2, track 24 in the Castlevania Curse of Darkness liner notes. And ゆか(Yuka-san) can be seen in the liner notes of
LC-1453~4 (disc 2, track 15 liner notes).