I dont know if it's real but the spoiler is..........................
Aside from her not ending up with the blue haired guy (which i strongly ship just whyyy), she goes back from her world and leave her friends and the white haired guy also come with her because he had found a method i think.... but her other friends.......THEY COULDN'T COME IF I AM RIGHT
Not correct. Spoilers
She only went back to her world temporarily to ask the author to change some things. Blue hair was going to die because on an accident I think. The author agreed but Dan-I had to pay the price. It was that her friends memories of her would be erased. So she befriended them all and fell in love with white hair guy. She confessed but was rejected. Later the white hair somehow went to Dan-I’s world and regain his memories. But not the others because it’s dangerous. (Got these from a spoiler chain)
I just saw a spoiler that broke my heart
If that is the ending just why