You took his map and gun. He was waiting and....attacked. Akane and all the others. We were the last two, before he attacked you. I shot him and tried to drag you out but you told me to run.

[Yuu was thus understandably emotional in seeing Mika again after thinking he left Mika to die back there. Seeing him whole again as if it had never happened. Which somehow it hasn't yet. At least, for Mika. His hair is a mess as usual, the blood at least mostly just on his uniform since he'd washed his hands in somewhat attempting to get clean before.]