The Reincarnated Demon King's Journey to Another World

When his own race was exterminated and the "Devil King" on the verge of death came to the modern era of 2019, he became the most inconspicuous "Zero" in this city where ability is paramount. A year later, his subordinate Lucifer found him and said: Is the God of War of the "Celestial Clan" who killed me also in this world? Magician, ability user, building, 16 summits; Magic, Cross Continent, Heavenly Clan, Human Clan; The confrontation between "Demon Realm" and "Modern Times", Satan, who claimed to have bid farewell to the demon clan, encountered a choice that affects all mankind...