Takahisa wasn't sure on what to do, as well as being protected here, he was also trapped and not able to assist Kaika right now.
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Kaika kept on walking, but looked like she was stumbling. She tried to ignore ever since this happened during the fight against Annie, but Kaika had twisted her ankle. The pain unable to heal due to Kaika not being in her Partial or Full mode, she suddenly falls down to the ground, knocked out. Strangely, both Kaika and Eren began glowing in a bright light.