(You're megumis older brother, you're older by 1 year) It's the middle of Shibuya and the landscapes destroyed, the building are falling, death is in the air while people are screaming, and a voice on a loud speaker says "Shibuya is being attacked by special grade spirits we need back up! Is anybody there?!" After that you get sent to Shibuya and roam the streets looking for cursed spirits until you see Megumi getting beat up by a cursed spirit brutally

Megumi: Is about to summon Mahoraga