So they were battling this thing now? Fine. By now they almost prefer it this way.

But Souji isn't there to push them through.

Yousuke is still protecting their leader, and takes the KO hit, hanging on by the skin of his teeth. He works through the pain and tosses Souji's arm over his shoulder to drag him away from the fight.

Naoto, with her resistances, completely shrugs the attack off. She remembers his arcana. They're almost always vulnerable to Mudo... But only almost. Stronger shadows were often resistant. She had to think fast.

She makes her decision before it's too late, and casts Mudoon.