The Grey Route - Trails Through Daybreak Part 87 - No Commentary
Difficulty set to normal.
This video covers going with the Grey route, and starting the Underground Remnants Upper Zone dungeon. Here are the timestamps and notes.
Note: The unique characters you get each route cannot have their gear changed or upgraded. The grey route gives you two characters, one can be controlled, the other will act on their in battle. They wont join you in the city though, only while in the Underground Remnants.
0:00 Meeting with Heiyue
7:00 Boss fight
8:56 After the fight, the group talk with Heiyue
12:31 Waiting for the doorway to the Upper Zone to open
13:35 Entering the Underground Remnants Upper Zone dungeon
19:10 Dungeon exploration begins
20:13 Arioch talks with the group
22:22 Boss fight
26:30 After the fight, the group speak with Arioch