https://vndb.org/v19644
http://www.getchu.com/soft.phtml?id=916829

Part 2: https://e-hentai.org/g/3418172/4048f9951c/
Part 3: https://e-hentai.org/g/3418173/1e4661557d/
Part 4: https://e-hentai.org/g/3418174/d5fdeed327/

jpg version: https://e-hentai.org/g/1046898/52323e4d6e/
The uploader of jpgs said:"Feel free to replace with PNGs", so I upload PNGs.

The PNGs in this gallery are compresssion Lv6, considering that the compresssion Lv0 is 28G+.

I upload 2 torrents:
1. A torrent of PNGs (compresssion Lv0 and 7zipped), which was uploaded by the uploader of jpgs. The compressed file is only 0.5G, but the decompressed file is 28G+.
2. A torrent of PNGs (compresssion Lv6, lossless), consistent with this gallery. For those who need lossless PNGs but do not want to store 28G+.