Coldness

Ryu nodded. In the end, he felt that this was a decision best left up to them, and he didn't really mind one way or another. He quite liked Eska, and Isemeine had her own charm. Them being in the same body was more entertaining to watch than anything else, and since they preferred to keep things this way for the sake of their strength, he wouldn't' be the one to get in their way. 

After a while, Ryu reluctantly rose from bed. 

"Wait here, I have a few breakthroughs to finish first. Then we'll go out together."

Eska's gaze flickered as she watched Ryu vanished deeper into his immortal cave. He was the only one whom she had ever heard speak of breaking through so casually, he didn't seem to take it seriously at all. She thought that maybe things would change after coming to the True Martial World, but apparently not.