>>3428>Is there a way to find old Japanese fanart from before Pixiv was born?Yes! I used to do this all the time in my fandom and just started again. One way is to google character name + series name or ship names in Japanese. A lot of fansites are hidden from search engines but not all of them. Alternatively, you can see if people link their personal sites from their pixiv, twitter, twpf, doujinshi, etc. You might have better luck looking at older fanart first.
Once you find one site, you should be in. Usually they link a bunch of other art/fic sites and also some webrings and directories. Most of these are monofandom but there are some more general ones. I have this extension so you can right click any link and have it search the internet archive:
https://addons.mozilla.org/en-US/firefox/addon/resurrect-pages/. There have been tons of Japanese hosts and a lot of them have been nuked over the years. Archive coverage is spotty and glitchy and you will suffer though.
I was able to find this and it should be a good start:
https://web.archive.org/web/20131019151146/http://murai.tk/yomi.cgi?mode=kt&kt=01_01. It looks like the site breaks and starts redirecting in a loop around 2015.