After the Thanos of the Southern Song Dynasty Snapped His Fingers

Thanos's Infinity Gauntlet traveled through time and space and came to the Southern Song Dynasty. It was picked up by a kid herding sheep. He put it on and snapped his fingers. Then... Half of Mongolia's 800,000 cavalry were gone, the Emperor of the Southern Song Dynasty was gone, and the protagonist arrived... The world line changed drastically. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.