They changed Kim Dokja's last words, in the web novel, it was "Let's meet again, Yoo Joonghyuk", they've been changed to "Live on, Yoo Joonghyuk", which is a recall to Joonghyuk's words when he said "Live on, Kim Dokja", but to be honest, "Let's meet again" felt far more personal than "Live on", so it kinda icks me.
Also, They really tried their best to remove the homoerotic overtones from the manwha, especially considering how much they toned down Yoo Joonghyuk's desperation in this situation, this scene was the first time Yoo Joonghyuk showed any reaction to the death of his companions, so this scene meant a lot in the novel. But the Manhwa keeps trying to show him extremely expressionless and an edgelord.
This is how it played out in the novel.
"Let's meet again, Yoo Joonghyuk."
The power of the demon king disappeared and at the same time, strength
drained from me.
[The main scenario has ended.]
[Seoul Dome has been freed.]
A small black hole appeared in the air behind me. My body was slowly
being sucked into it. My legs, my torso, my arms…they turned into powder
and were slowly being sucked in.
"Kim Dokja! No! Kim Dokja!"
At the last moment, he tightly held me by the neck. However, it was already
too late.
My vision turned black and I was sucked into an empty void. The eyes of
the constellations watching me started to disappear one by one. I was
leaving the area of the channel.