Rakudai Kenja no Gakuin Musou: Nido Tensei shita Saikyou Kenja, 400-nengo no Sekai wo Maken de Musou

The Sage of Wind, Ephtal is a reincarnated human, coming from modern Earth. Reincarnated in a new world where magic is real, he decides to devote the entirety of his life in the pursuit of magic. Despite his efforts, though, he discovers that he is absolutely talentless in magic, and breathed his last in anguish.

...But it isn't the end for him just yet! He reincarnates once again bearing the same name, Ephtal, 400 years later. Having retained his knowledge and power, he steels his resolve and once again sets his sights for the peak of magic!

However, in a surprising turn of events, he discovers that magic has terribly declined. In this era where powerful spells is a rarity, his talentless self is now completely unmatched!

From the depths of powerlessness to the peak of power, the talentless but peerless mage's journey to the top starts now!

(Source: Square Enix)

Rakudai Kenja no Gakuin Musou: Nido Tensei shita Saikyou Kenja, 400-nengo no Sekai wo Maken de Musou began as a web novel on Shousetsuka ni Narou under the title Aa Kenja... Shindeshimau to wa Nasakenai to Iwarete kara 400-nen ga Keika shita: Rakudai Kenja no Gakuin Musou (ああ賢者・・・死んでしまうとは情けないと言われてから４００年が経過した。 ～落第賢者の学院無双～) in November 2018. The first official volume was published by Kadokawa on October 1, 2019.