The Nation-Guarding Blade

After accidentally transmigrating to a parallel world, he has no golden finger. He is neither a landlord prince nor a rich family's live-in son-in-law, and he has no harem of wives and concubines. Relying only on the skills he gained in his previous life and a heart full of passion, watch him fight bandits alone and protect the villagers; ride into battle to repel the enemy, then dismount to bring peace to the nation; command the winds and clouds, and destroy a country with a laugh...

An allied army of three hundred thousand launched a fierce assault on Tianmen Pass. Blood flowed like a river, and the city was on the verge of falling. Just as all seemed lost, five li beyond the enemy forces outside the pass, dust filled the sky, accompanied by a black tide. Arrows poured down like locusts, and cries of agony rang out. Then swift horses and keen blades charged into the enemy ranks...

The soldiers were overjoyed, their morale soaring. "It's the Black Horse Legion! Truly the sharp blade protecting our nation..."