The actress is listed on this page and others as Tsukino Runa (Miyuki Arisu). That might cause the same confusion for some viewers. Tsukino Runa and Miyuki Arisu are two different actresses. I think the confusion occurred because Tsukino Runa appeared in a 2013 video entitled Painted Poops Girl by Arisu Miyuki.
The actress is listed on this page and others as Tsukino Runa (Miyuki Arisu). That might cause the same confusion for some viewers. Tsukino Runa and Miyuki Arisu are two different actresses. I think the confusion occurred because Tsukino Runa appeared in a 2013 video entitled Painted Poops Girl by Arisu Miyuki.