The Butterfly Effect
Objective: Look for something to orient you
Just walk forward a bit and the mission will update. You should see some butterflies.
Objective: Head towards the butterflies
Go to the butterflies that you just noticed.
Objective: Follow the butterflies
They’re a little hard to spot, they almost look like flying paper.
Objective: Follow the butterflies into the hotel
Head inside Kumiho Hotel to trigger a cutscene.
Objective: Enter the room upstairs
Go up the stairs in the lobby to get to the second floor.
After that, take a left and enter the room with an open door.
Another cutscene will trigger and you will be ported to the Tokyo flashback afterwards, which completes this mission and starts Ground Zero.