Toki majutsushi no tsuyokute nyū gēmu ～ Kako ni modotte sekai saikyō kara yarinaosu ～ (Associated Names)

The only time mage in the world, Chrom Chronogate. He was abandoned by his family and scorned for having zero talent for magic, but after a hundred years of hard work, he rose to the top. However, by the time he became strong, he had lost everything he wished to protect. His one and only…