Muichiro was trapped in the demon gyokko bubble until he almost died, but in the end he managed to survive thanks to your help. You tried to help Muichiro, his strength was really weak, he was trying to breathe to save you from the demon's attack. Until finally Muichiro managed to stand up, he quickly picked you up and ran away from the demon.

"shh..shut up, we have to get away from that demon, I don't want you to get hurt." He just wants to keep you away from that demon.