This was an interesting read, though I noticed some bugs with the star chart. Potential spoilers below.
For Yukine, one of the points says to ask Yukine if he dislikes life, but asking if he had been happy is what actually gave me the devotion point, and his final devotion point is awarded at the appropriate point but not crossed off in the star chart. For Wolfy, the points to speak with him in the train car, defend him, and to save the woman were awarded but not crossed off, and the final point doesn't seem to be awarded at all, it would be a 7th point but the other section of the star chart says he can only have 6.
Finally, a question not a bug, were the milestone scenes mentioned in the patch notes simply the scenes after you called someone from the roof, or was there something I missed?