I made a mistake, it's Chapter 218
"Is this Lani's corpse?"
Standing at the top of Leyenia's Divine Tower, looking down at the charred body before him, Duanmu Huai too bore a grave expression.
Lani did what she had to, she had no other choice. Gedwin's situation had made it clear to her, when the Death Rune clashed with the Golden Law, the general choice was to protect one and forfeit another.
For instance, the Death Rune killed Gedwin, but under the Golden Law, the divine humans do not die. So what happens then?
In the end, the Golden Law safeguarded Gedwin's body while the Death Rune annihilated Gedwin's soul.
A body without a soul is no better than a living corpse, and so, not wanting to repeat the same mistake, Lani transferred her own soul into a puppet, then killed her own body - thus Lani was no longer divine and was free from the bondage of the Golden Law.