The lawsuit alleges that Cloudflare is complicit in copyright infringement by offering its service to manga piracy sites.
The plaintiffs claim that Cloudflare has provided service to manga piracy sites despite knowing that the sites are illegally offering manga.
In a separate case, the Kyodo news service reported on January 6 that Japanese publisher Takeshobo and a male manga creator filed a lawsuit with the Tokyo District Court against Cloudflare.
Shuppan Kōhō Center announced on Thursday that Japanese publishers Kadokawa, Kodansha, Shueisha, and Shogakukan reached a settlement with American web security company Cloudflare in June 2019.