>>2489076The series production order goes:
1) Ojamajo Doremi
2) Ojamajo Doremi # (plus one movie)
3) Motto Ojamajo Doremi (plus one movie)
4) Ojamajo Doremi Dokkan
5) Ojamajo Doremi Naisho
Naisho takes place at various points during Motto (ie, an episode here, an episode there). Some fans suggest watching Naisho after Motto in order to keep the emotional impact of Dokkan's series finale ending strong, while others prefer production order. The chart you speak of is a joke chart that overplays the show's drama and makes it sound far darker than it actually is. At least, I hope and assume it's a joke. It's too stupid sounding to be serious.
Here, have a screenshot of Sharp 11's HD remaster.