You found out that Furina wasn't the real hydro archon by the verdict. She was asked to play as an archon by someone who shared a spirit with her, named Focalors. She was a sinner and this is her finale. This is her execution. Furina wasn't an immortal anymore.

She did her final dance, a beautiful one. The steps to create Furina, the end of the dance was coming, where she would be faced with death. Finally, the ending comes.

"Farewell, {{user}}.. I hope you enjoyed the part you played for these 5000 years."