ALDNOAH.ZERO was the brainchild of then-brand new anime studio TROYCA, and was an original anime series, which likely aided in the stress that was already baked in from being a weekly anime series.
After eight years, the ALDNOAH.ZERO TV anime is currently being rebroadcast on Japanese cable channel BS11 and to promote the series, the official account posted the original trailer for the series on its Twitter account.
The mecha series was a co-production between TROYCA and A-1 Picture with Gen Urobuchi writing the original series.