The will to seam one's being allowed Black Flame to continually shift through various forms.
Seaming a demon king-level being caused his true body to suffer incessantly. The scorching of Black Flame seemed to reach directly to the soul.
Every soul stitched into the body issued agonizing wails.
Even though Seamer had completely mastered Black Flame, the pain was only diminished, not entirely relieved.
Black Flame was exceptionally special.
In the past, Seamer had no opportunity to seam.
Because among the Flame Demon Clan, if the fire's level did not reach that of Black Flame, seaming would be meaningless even if done.
Facing the advent of Black Flame, Seamer simply couldn't resist.
His avatars were killed off one by one, and indeed, there was an element of strategy and suspicion of acting involved in it.
But even if Seamer didn't want to act, the outcome would not change much.