Chiyou lands on the ground, he has won the battle but he is not so happy about his victory.
He is thinking about the last few words Theia spoke, her words were filled with sadness and worry.
"Just what did you meant by those words Theia?" Chiyou asks as he keeps on thinking about her last words.
Chiyou thought that there battle won't be some death battle but it didn't take time for there battle to turn into a death battle and both of them desired to end each other's life.
All Chiyou wanted was to hear her reason for her actions but as the battle went, he also moved with the flow and let his desire to win the battle took over him.
At first, Chiyou was confused but now that he heard her last words, it's clear to him that Theia knew something that he didn't know and for that very reason, she took such a step.
But what is that information she knew that forced her to take such steps? He don't know.