Source: dic.pixiv.net，Screenshots from episode 36 of Sailor Moon S
Starting from May 17, 2020, although no one explicitly initiated the activity, and there were no specific rules, drawings of Usagi Tsukino from Sailor Moon became popular on Twitter and became a big anime news at that time.
During this period, artists used the #sailormoonredraw tag on Twitter and other platforms to publish paintings on this theme. It was like a carnival. Similar to the situation mentioned in Ghost in the Shell: Stand Alone Complex, there was no prior communication, but the event spread like a virus after it was initiated.
In addition to #sailormoonredraw, there are many similar painting theme activities, such as #blacktober, which is an activity to Africanize ACG characters; #jackochallenge is a painting activity based on the Jack-O squatting action in Guilty Gear -STRIVE-; #colorwheelchalleng is to put characters into the color wheel.