For this ending I will write exactly what choices I made and where, if when you are playing through you get to a choice that isn't listed below, it's because it didn't matter to the outcome for the trophy so I left it out.
*** Spoiler - click to reveal ***Lesson Choice: I always used MATHS CLASS
[04/11] Join the infirmary staff.
[04/15] I think I'll leave it alone.
[04/21] Talk to Kazuaki.
[05/21] Go to the first-aid tent.
[06/22] Go to the store.
[06/22] I think that's a little rude!
[07/07] Become a famous artist.
[07/07] No thank you.
[07/13] I was with Yuuya.
[07/20] That's all.
[07/24] Forget it.
[08/06] Invite Yuuya.
[08/30] Return to my glorious abode.
[09/25] Go spy on them.
[01/01] Fulfillment in conquest.
[02/02] Bitter black beans.
[02/13] Doctor Iwamine.
[02/13] Go with Yuuya.