Three hundred years ago, Shen Zhaoyun created the Alliance's first combat mecha and was revered as the "Mecha Ancestor." Opening her eyes once more, she finds herself reborn three hundred years later into a new student about to be expelled. To stay, she awakens a dusty first-generation Zero-type in the corner, sending shockwaves through the entire Alliance. Posterity says she was selfless and great; only she knows that she built mechas back then because she was poor, afraid of death, and wanted to make money. Now, while repairing mechas and earning materials, she bursts into the Azure Feather Cup, using the most underestimated mecha to subdue geniuses. The Mecha Ancestor has returned to personally tell everyone: mechas are not piloted like this!