Kaika could tell at this point that Hope had went through her thoughts to find those doubts and uncertainties, but at this point, Kaika couldn't even show any mental responses. All she kept on repeating in her head was: "Everything is going to be okay." Kaika slowly walked towards the portal, seeing that Hope was going to go that way, and that would be the last moment of her short free life before she would be gone.
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Sota felt nervous if Kaika was really doing this just to protect him. He was trying his best to not show any fatigue or weakness, but no matter how he tried to conceal it, he knew that he was helpless on his own. Not only that he relied on Kaika when he couldn't fight, but he also relied on his Cursed Pact with a demon just to make a use out of himself. He kept silent as his soul was prevented from moving, mentally humiliated by how he was so dependent to things good and bad.
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"..." Mokou was a bit curious to what Hiei was trying to pry information on. If he was actually asking these newcomers, than maybe it was something related to his aim to fight against two certain people.