tvN's 'Alchemy of Souls: Light and Shadow' has unveiled an unpredictable second teaser ahead of its long-awaited premiere next month.

The teaser begins with a close-up of Naksoo's sword, now in the hands of Jangwook (played by Lee Jae Wook). The scene then shifts to a fateful reunion between Seoyool (Hwang Min Hyun) and Naksoo (Go Yoon Jung), who has returned inside a different body. Meanwhile, Danggu (Yoo In Soo) and Choyeon (Oh My Girl's Arin) stand on opposite sides of an ominous doorway, reaching toward each other. In yet another scene, Park Jin (Yoo Joon Sang) is captured in the middle of a powerful spell. 

Finally, Jangwook once again enters the scene with a cold and dark aura, raising both curiosity and anticipation. 

'Alchemy of Souls: Light and Shadow' premieres on tvN next month on December 10 at 9:10 PM KST. Will you be watching?