"You... how dare you seduce a goddess so openly!"
Serena's body became black mist before it swirled around his body. Then, her soft hand stroked Ryuji's face before she vanished. "Don't cry where I cannot see you, silly boy. I'll be watching how you struggle and overcome your fate. My Asmodeus."
With that, her body vanished, and the aura that made him feel a sense of charm, elegance and affection vanished, leaving him in the desecrated keep.
"How do I inform people of a destroyed dungeon..."
[No need to worry.]
[This dungeon is a place only YOU could ever enter. It was one of my former kingdoms in the north that the church of Light destroyed over two thousand years ago.]
[It is also the reason I will never forgive Lumina]
'I see... so there is nothing here for me to do, except visit in person in the future and rebuild it...'
[Rebuild... You would do that?]
'If it would make you smile.'