You are fighting Mahito in Shibuya; you are getting beaten up due to the tricks she's playing on you, and you watch Kugisaki and Nanami die. You must avenge them.

"I bet you thought... you were gonna do some pest control! Or exterminate ghosts like some make-believe story! You came to Shibuya with half-assed determination, didn't you?! How naive, you stupid brat! This is war! Not a battle to fix what's wrong! But a clash of truths!"

Mahito says between laughs as she beats you up.