Nice work, the slow reveal of the events in this story is done really well. The framing of Day 1, Day 2 etc. works well to create a branch and bottleneck structure, there are options for the player but the main story points are the same. And the way some choices, like joining the group, effect later choices is good. It seems to end abruptly with a blank passage, maybe add in "to be continued" or something so it's clear it's not an error.