[No serious training, all about technology.] Qin Xuan, a scientific researcher in his previous life, traveled to the Fuyuki Three Houses, and from then on, the world line gradually collapsed... "The Twenty-Seventh Ancestor of the Dead Apostles? Try my Five Elements Fusion Array!" "The Clock Tower at the Center of the Western Magic World? Mathers and Aleister don't even take it seriously!" "Ainsworth wants to rewrite the planet's mythology? Has he asked the old man Chaos next to me?" "The Templar Church launched the Third World War? Mobius and Velvet flipped the table and switched to the scientific phase!" "The next world line is in a crisis of humanity? You've come just in time to see what the Fourth Calamity is!" "The Beast of Disaster? It's not even half as good as my final trial as a human!"... Qin Xuan, carrying the Cave Heaven World Tree on his back and holding Mooncell in his hand, faced the kings of the Lostbelts, the Predator Planets, the Blue Glitter Galaxy, and powerful enemies from the multiverse. "Who else refuses to surrender?"