#171 has remained unguessed for about a week now. Hirohata just tell us who it is already goddammit!!
So here come
#175:

1. No double posting. If you do and you have the right answer, it's void.
2. No throwing out multiple answers in one post. If you do so and have the right answer this will render it void.
3. Edited posts are void.
4. You may not win two rounds in a row. If you post the right answer to your second straight round your answer is void.
5. Pictures from anime only!! Manga is also allowed but anime is preferred.
6. If your post is voided for any reason and contains the answer to the round (be it accidentally or purposefully) the round's point value will be deducted from your point total and added to the round winner's.
I know it's a shitty render so I'll give an early hint: It's from one of the shows in the "torrents" thread under "anime downloads".