Minako and Artemis have taken training ideas from various anime and manga, such as the weighted clothing and high gravity training from Dragon Ball, the "train to failure then use healing magic to recover and continue" from The Wrong Way to Use Healing Magic, and the sparring ring that reduces all impact damage to 0 from ViVid Strike!.
Haruka tried to call it insane when she found out... Except all ideas were tested before being revealed, so she had nothing.












