Border Escape: From Mule to Underground King

Zhang Fan was deceived and stranded in the border region, surviving nine deadly encounters. In desperation, he accidentally awakened a god-tier healing system. Transforming into a double agent, he navigates treacherous situations and dances with the cold beauty Qingluan, a key informant. After a fierce battle, he mysteriously disappears. When he returns to the border with overwhelming strength, all factions bow before him, marking the beginning of a legendary border saga!