The End
The fight between the Celestials and the mortals lasted for more than fifty years, and at the end of it all, the Celestials lost the war and they were finally incorporated into the mortal realm. After the celestials realized that they could die and they saw the ferocity with which the mortals fought, they tried everything they could to hold them back, but there was nothing that they could do and they were eventually overwhelmed by the intensity.
All the realms felt the effects of the war between the mortals and the celestials, and they could only wonder what was happening to make the cosmos quake after Han joined the war in the tenth year.
At the end of it, the temple was no longer locked and the mortals could move through the portal leading to the celestial plane at will.
....
"Daddy! Mummy! Arthur isn't playing nice! He took my toy!"
"No, I didn't! It's Sylphie who isn't playing nice! She doesn't want to share!"
"Groan~!"