folder mapped to folder

I think what I want is not possible, but i need to ask

• my multisite is instaled on multisite.domain.com
• my example site is created on multisite.domain.com/example
• I need my public domain intact because it has an ecommerce. url http://www.publicdomain.com
• and thats the tricky part publicdomain need WordPress blog on http://www.publicdomain.com/blog

So i need point or map http://www.publicdomain.com/blog to multisite.domain.com/example

Thats possible?

my final intentions are:

• domain.es/blog map to multisite.domain.com/bloges
• domain.fr/blog map to multisite.domain.com/blogfr
• domain.it/blog map to multisite.domain.com/blogit

thanks

https://ww.wp.xz.cn/plugins/wordpress-mu-domain-mapping/