Love the game and almost completed all of it! However I'm having trouble getting ending 29 with Kier D: any tips on how to get it? I've looked at the guide and it's kind of confusing. I'm also missing the last CG on the second page, does anyone know how to get it? Thanks and so excited for the next chapters :D
Ending 29 requires a little bit of bad luck to find. In the guide under Ending 27, there's a choice that has a 1/3 chance of going badly, and you need to get that in order to get enough "noise points" to reach Ending 29.
As for the CG, that's found in the Extra Story. There should be a button for it on the Extras menu after you've hit a good or neutral end for all four boys in Chapter One (if it's still not there, try running through the game credits at any ending and see if it's unlocked then).