Ugh, every single area in the game has some stupid trigger you have to find to move on. It’s Gabriel Knight “cat-mustache” level of stupid, and not in a good way.
Quiz time, light spoiler:
In an early area of the game, you need to cross rubble that forms a gentle incline. Do you:
a) Walk over it.
b) Impersonate someone to scam some guy out of lots of money, then get gouged 100 000 yen to go the bathroom because that’s what some evil dude is charging you for the key. Said bathroom turns out to have a window you’re not told about that just so happens to overlook a small walkway that goes around the building to the other side of the rubble.
It doesn’t actually get better from then on…