Alright if they changed things between the WN and LN maybe they make a good ending for the manga!I've read hundred of manga and ln and i can say that Kumo Desu ga Nani ka have the worst ending i've ever read.
A little spoiler for those who want to know how disapointing it is.
So close to the end there was a "war" and the aim was for Kumo to save half of the world and the godess because if she did nothing everyone would die. The human's aims on another hand was for them to stop her because they didn't even know that if they stoped kumo everyone would die.
At the end kumo fight Kuro, who is literaly the only one who can stop her, she won after some time. She is a little worn out but she still could skill all of the trash easily. But then author say "i'll make a god so stupid that she wont see a little trash that sneak on her back. Then i'll use the plot to stop a god from instantly killing the hero, and then the hero OS said god."
Yep, the hero kill Kumo, who is a god, in a single attack without even taking any damage.
The fun part? After he kill her she use a clone to knock him and his slave down. Yep, they destroyed her main body blow up all her effort, but she dont kill them. Why would she, who killed countless people that pissed her off, not kill this fucker? Because he is the hero obviously!
So then what does she do? She save everyone and kill the godess who was literaly the main person, beside the reincarnator and loli demonlord, she wanted to save.
The last chapter is literaly a discussion between D and her maid explaining everyone that happened after. And Kumo? She is in a bird cage caugh by D.
TL DR The entire story is pointless, everythings Kumo and Demon lord did was pointless. Hero win with no effort after being full retard. Everyone but the important people are saved and they live happily ever after... We dont know anything about what happened to demonlord and some other important character.
This is the WN ending, and from what i read the LN ending was worst cose hero literaly pull out a super happy ending.