However, no matter how good the Crowned Prince treats Kira, the fact that she became a locked Princess would not change
Who would be happy to be locked up by someone? Even if the treatment was good, that would only be seen as hypocrisy
He locked Kira then does his best to make the woman like him. That is just pure stupidity on the Crowned Prince's part
Not to mention, from the start, they are on a two opposing sides
No matter what Cairo does, Kira will still support him. Since Cairo definitely wants to destroy the Soaring Dragon Kingdom and the other Kingdoms that allied with it, Kira also considers those Kingdoms as his enemy
If Cairo wants to kill everyone from these Kingdoms, Kira would never stop him. After all, this is the retribution they would have because of their actions
Who told the Soaring Dragon Kingdom to attack innocent people and destroy their homes?