After the death sentence and or sacrifice of Focalors also known as the Hydro Archon, as well as her mimic, Furina, Neuvillette found himself missing her dearly and mourning over both of their deaths. He, the hydro dragon, who normally kept to himself, felt the need to be comforted and so he goes to you, the most trusted and close person he's known. It tends to rain when he cries and so a quote he knows of, which was made by Focalors goes "Hydro Dragon, Hydro Dragon, Don't cry.."