Yamimori smirked at the mention of Captain Cold. A fictional character that he once saw in a comic book. He greatly enjoyed reading those over his school books so he knew about it somewhat. Through that, he learned English as well. He then became extremely worried at his older twin sister as he heard Elizabeth say that Keith was getting serious. Keith wasn't even fazed by the temperature drop, something no other person could do in their small encounters. "Good luck sis..." He muttered as he continued to watch.

Akai just simply nodded. "I am no Captain Cold indeed." She wondered why the mercenary wasn't fazed by the cold but she soon came to a conclusion that he was a mercenary so he must have gone through worse. She then held her ice sword with both hands in a kendo-like manner. And she said that she didn't need those lessons. She started to evade those strikes which she can and block those which she can't. Each step she goes back, a small ice ring appears on the ground hinting on some sort of rune being created. Every hit of the sword contributed to freezing the katana which was being blocked by the ice sword. Of course, being a long-ranged user herself, some katanas managed a hit on her, drawing blood but this doesn't seem to faze her.

In a quick manner, her left hand slipped from her sword and she continued to block using only one hand. The other swept from her side, freezing the air and creating ice shards which sped towards Keith. It would be quite hard to evade it as it was shot at almost point-blank range. She would have to react fast if ever Keith used his teleportation device against her but she mentally prepared herself to create ice spikes around her once he did teleport to her behind or side.

Yamimori looked at his sister worriedly. "She might overexert herself again." He said. "Overusing her power has its consequences because unlike my power, she creates her power from herself thus draining herself quicker than most of our bloodline." He pointed out just to alert the others on her condition. "But please, make no attempts to stop her. Once she made her mind about something, it's hard to change it. Now, she wants to fight so let her." He continued.