Clevatess Staff Explain the Retro Cel Look and Heidi Flashbacks
In an interview at Anime Expo 2026, Clevatess director Kiyotaka Taguchi and Lay-duce producer Seiichiro Kuriyama explained how they built the series' visual style. The episode one destruction scene was stretched from a few manga pages to about 20 minutes. Present-day scenes use a 1990s cel look, while flashbacks aim for a 1970s style like Heidi, A Girl of the Alps. Kadokawa producer Kosuke Arai also brought Ellie Goulding in for the ending song.