The Strongest Sage with the Weakest Crest 20 (GA Novel) [Light Novel]

[Machine Translation] Matthias, who had once mastered magic and the strongest in the world and was even called a "sage," was reborn in the future in search of "the best sigil for magical combat. He was lucky enough to obtain the most powerful sigil, but in his reincarnated future, the best sigil for magical combat was treated as a "disqualified sigil," and even the superior magical theory was degenerated. Sensing the conspiracy of the demon tribe, Mathias defeated numerous obstructions from the demon tribe and placed people from ancient civilizations at the school to lay the foundation for the revival of chantless magic, revived Gaius, returned the "broken star" to the universe, and defeated the "demon tribe of destruction. Matthias invaded the home planet of the fierce star spirits and met up with the resistance, guided by his collaborator Mjol, but they were afflicted with an incurable disease. By providing them with medical treatment and magical technology, he forms an alliance with the Resistance, who are determined to "overthrow the invaders," and begins a counterattack with a new force! Matthias and his group gain momentum by defeating the invaders one after another, but a powerful enemy called the "Slayers" stands in their way...?

かつてその世界で魔法と最強を極め、“賢者”とまで称されながらも『魔法戦闘に最適な紋章』を求めて未来へと転生したマティアス。幸運にも最強の紋章を手に入れたが、転生先の未来では魔法戦闘に最適な紋章が「失格紋」と扱われ、優れた魔法理論さえも退化させられていた。そこに魔族の陰謀を感じ取ったマティアスは、幾多の魔族の妨害を破り古代文明時代の人物たちを学園に据えて無詠唱魔法復活の礎にすると、ガイアスを蘇生させて“壊星”を宇宙に還し、『破壊の魔族』をも退けた。熾星霊の本拠地『母星』へ侵入したマティアスは、協力者のミョルの案内でレジスタンスと合流するが、彼らは不治の病に侵されていた。彼らに治療と魔法技術を齎したことで「侵略派の打倒」を掲げるレジスタンスと同盟を結び、新たな戦力を得て反撃を開始する!侵略派の刺客を次々と撃破し勢いづくマティアスたちだったが、『斬殺者』と呼ばれる強敵が立ちはだかり―!?