It helped, tysm<33

@onehmara Maybe you need to raise Kakitsubata's favorability to the highest level:
13 B. Go see Amemiya
13-2 A. Humans still have hope
26 A. Expel all Mandemons
28 B. "I'm scared."

The option "kakitsubata" is gray can u help me to unlock

@emitsu_kitsu click "Special - Special Exhibition" in the main menu

I still haven't gotten the achievement "The Bells Of Moscow" am I overlooking something?

Thank you <3 This is perfect!

Thank you so much!

@Shaddict Take the evidence when escaping from the cabin, and try to maximize your friendship level with Amemiya:
8 A. Break into the cabin
8-2 Fight with Sakaguchi!
13 B. Go see Amemiya
13-2 A. Humans still have hope
14 B. Don't want to obey her
15 A. Enough!
16 B. I can't do it
17 A. Sleep on the floor
18 A. To kill all the teachers
18-1 A. Student resistance organization

Can someone help me ? No matter what I choose, 19 A "Go to the music classroom" is always grayed out

@Rainee Thank you so much for the answer and the guide as well!