Resurrection of Spiritual Energy: I Can Travel Between Two Worlds

One is a successor of Taoist medicine whose inheritance is about to be ended in this world. One is the eldest lady of the largest chaebol in the spiritual world. They are unfortunate to be born in this extremely brilliant but also extremely dark era. But they are also lucky. This era gives them the opportunity to know each other, love and cherish each other. The revival of spiritual energy, the mutation of creatures, the weakening of the barriers between the two worlds, and the invasion of the abyss have put the fragile flower of civilization in danger in this dark storm, and the world seems to be shrouded in boundless darkness. But, will it be a success? When the darkness is at its deepest, it is also when the light is born. And until then, if there is no other torch in the world, I would like to be the only light.