Shikkakumon no Saikyo Kenja-Sekai Saikyo no Kenja ga sarani Tsuyokunaru Tame ni Tensei Shimashita 25 (Gangan Comics UP!)

[Machine Translation] To the ocean in search of more power! The journey of the strongest sage is full of ups and downs! A wizard who was once called a "sage" is reborn in the future in search of the best sigil for magical combat. However, in the future where magical theory has degenerated, the desired emblem is called a "disqualified emblem" and is despised. It was the demon tribe that distorted the information in the sigil and degenerated the magical theory. Matthias is engaged in a battle with the demons who are trying to destroy human beings! Matthias tries to create a weapon using "extraterrestrial crystals" extracted from the power of demons in the universe, but the handling of these crystals is extremely difficult. The only solution is a special metal found in a certain sea area... Just then, the Royal Second Academy is building a huge ship...? Wherever you want to be strong! The sea adventure of the strongest sage begins...! A very popular otherworldly "crest" fantasy! Includes a short story newly written by the original author!

さらなる力を求めて大海原へ!最強賢者の船旅は波乱万丈!!かつて【賢者】と呼ばれた魔法使いが、魔法戦闘に最適な紋章を求めて未来へ転生。しかし魔法理論が退化した未来では、望んだ紋章は「失格紋」と呼ばれ蔑まれていた。紋章の情報を歪め、魔法理論を退化させたのは魔族。マティアスは人間を滅ぼそうとする魔族との戦いを繰り広げていく!宇宙の魔物の力を抽出した『理外結晶』を材料に、武器を作ろうとするマティアスだったが、その扱いは困難を極める。唯一の解決方法はある海域にある特殊な金属だというが…。ちょうど王都第二学園が巨大な船を造り上げていて…!?強くなるためならどこへでも! 最強賢者の海の冒険が始まる…!!超人気異世界「紋章」ファンタジー!!原作者書き下ろしショートストーリーも収録!