Guided by the God of Light, Taesan and the angels wage war against Marok, striving to safeguard the world. Meanwhile, Ogwi and Samin scheme to engulf it in darkness.

The weight of past guilt presses heavily on Taesan, while Samin turns to Ogwi for assistance in seizing Mirr's power. A strange luminescence heralds the return of an ominous presence.

Following the assault of dark forces, Tae-san’s concern sharpens for the wounded angels. O-gwi, clutching the soul stone, makes a silent vow of retribution, while Ma-rok pursues Sa-min in the shadows.

Marok cautioned Taesan of the impending return of Ogwi and Samin. As a palpable darkness gathered around them, Geumsoon, the sole human for whom Taesan held affection, found herself marked for harm.

Taesan safeguards the angels and Geumsoon, as Samin abducts Mirr. Ogwi appropriates Mirr’s power and the soul stone. Marok unleashes the force of his wand.

Ogwi and Samin clash over the soul stone, with Ogwi ultimately succeeding and fleeing with Mirr. Meanwhile, Taesan breaches the Hellmouth, a move that restores the angels’ power but simultaneously unleashes a tide of evil upon the world.

Ogwi offered prayers to the divine, yet a different power responded. Driven by rage, Taesan stormed an underground temple, determined to prevent Samin from claiming Mirr’s dragon soul.

Where celestial beings meet the shadows of Samin’s fallen, Taesan falls in defense of Mirr, only to rise once more and bind the darkness, delivering salvation to the angels.