On which websites are Japanese e-books made?

Japanese people have a strong sense of copyright, so if someone makes an electronic version of the original work and publishes it online, it is considered infringement. I'm not sure if there is a Japanese website where I can download the electronic version of the original book. Some people in China may scan the original, but there are few places to put it. It is impossible to search by name alone. Otherwise, you can go to the Blue Sky Library in Japan, where you can read all the famous works that have passed the copyright validity period, and others also provide fragment reading. http://www.aozora.gr.jp/