
Maybe the reason why the humans doesn't change in the deities' eyes is because they lived their lives longer than humans. So long that a hundred years for a human is only but a split-second in their eyes. Humans change as time goes on, they change countless times. These changes are so minimal and gradual that even they themselves do not notice the difference of their yesterday selves, today and tomorrow. Their changes happen too fast that their lives only felt like a passing breeze the deities' would not even notice the difference in the wind.
There are billions of people living in the world. Counting all souls that has ever lived on earth then there's probably more than billions of lives tied with fate. And I think that, if fate is responsible for people's journey in life then fate is lacking in genres, ideas, imagination, originality and is full of damn clichés because if the humans' lives are written and driven by fate maybe it's also the reason why the humans remains unchanging in their eyes. Just like a movie that's already been released decades back. Someone will recreate that same movie with the same script with a new cast in every passing decade.
Different people, different era, same story, same role, same fate.

the logic in this...... tsk tsk... I can't seem to find a proper explanation as to why he fvcking loves his fake ass daughter and hates his pureblood-born daughter. Seriously.... why? Like, aren't these beeches supposed to treasure her more since she's the last thing the mother left in this world? Like, she's effing traded her life just so her daughter could be brought to this world, and you're telling me that that woman was the love of your life and yet you're treating her only daughter worse than trash....ARE.YOU.FVCKING.KIDDING.ME????
FATHER...BROTHER... WHAT HAPPENED TO YOUR BRAIN CELLS? THEY DIED OR SOMETHING????
SO WHAT IF SHE HAS THE POWER? SHOULDN'T YOU BE PROUD MOTHAFS!? DID YOUR NEURONS GET FRIED OR SOMETHING? WHAT GIVES??? SERIOUSLY! TO ALL FATHERS, BROTHERS, FAMILIES WITH THE SAME SCENARIO???? WHY??? I NEED A PROPER EXPLANATION! I NEED AN ACCEPTABLE REASON!

Well, yeah, thinking about it in a realistic standpoint it's indeed because of the plot. As you've mentioned this is already a cliché, we've seen it as frequent as we did. But these little sheets just makes me wonder why in a more inclusive point of view... and a million neurons must have fainted in my brain thinking about it lol.
Don't get me wrong either, the webtoon is great.
Just.... Just.... (▰  ̄皿 ̄▰)
Even after all their yelling that Seth is evil.... his past doesn't match.
Exactly!