Yuuka Oosawa is a Japanese entertainer, and it's possible that she's featured in Vol 45 of the Tora Tora Platinum series. Unfortunately, I couldn't find more information on this specific volume or Yuuka Oosawa's involvement.
For those eager to experience Tora Tora Platinum Vol 45: Yuuka Oosawa for themselves, several options are available: tora tora platinum vol 45 yuuka oosawa uncensored link