A Returner's Magic Should be Special Season 2.

In a land dominated by the formidable Shadow Worlds, most of humanity has been destroyed. To rescue their planet from impending doom, six brave heroes fight a perilous battle…and fail. But there’s a glimpse of hope when Desir, one of the last mages, is suddenly sent back in time 13 years! Now armed with knowledge of the grim future, can he alter…