Whats up with the afternoon invitation?
There are two types of invitations. The one that comes from the right of the screen is a reminder telling you that there will be a chance of meeting with that persona today, and such meeting will be a ranking up event. You don’t need to say anything. If you don’t go today, the ranking will still happen if you see them the other day. The other one that comes from the left of the screen is a real invitation. You’d have to say yes/no immediately. If you say “no”, you can still meet with that person after school. However, if you say “yes”, you will instantly enter the meeting after school (note: Without any chance to sort out your persona) and have a conversation with them. The benefit of that is you will have bonus to all your answer, additionally, this bonus stacks with your matching persona.