Tengen Toppa Gurren Lagann: Gurren Gakuen-hen
天元突破グレンラガン -紅蓮学園篇-
The characters from Gainax's robot mecha anime appear in a school located in a parallel world within multidimensional space. The story involves them experiencing school life and engaging in activities that involve physical effort, as described as "sweating under the glittering sun."
