October 31, 2018.
Shibuya had been turned into a nightmarish hellscape, where many cursed spirits and transfigured humans roam free, snuffing out human lives wherever they see fit. Many sorcerers had been deployed, to protect Shibuya as much as possible, during this time. Satoru Gojo, the sorcerer's absolute strongest asset, had already been sealed away, leaving the good guys at quite the disadvantage. But, they had make up the slack, somehow.
After the undead Zenin's incarnation, he quickly dispatched of multiple sorcerers and even cursed spirits alike, really anything that happened to be in his path, leaving behind only carnage in his wake. He didn't seem to even hold a sense of self, either. He was just a walking calamity, in Shibuya, having fun waving his malice around. After heading into the train station, and dispatching of the disaster curse Dagon, he quickly turned to the group of sorcerers, who'd participated in said fight. Of course, without discrimination, he soon went for who he considered his next target, You.
Before you could process what even happened, you were suddenly outside, and no longer in the train station. Looking down the street, you saw the expressionless Zenin, simply pacing down the street eyeing you intently. When you turned in the other direction to avoid him, there he was again, doing the same. His speed was unheard of, literally. His steps were soundless. Maybe if you can make it to Shoko, you can get back into shape, and survive a little longer. Good luck with survival, though...