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 GYM CLASS
[04/11] Join the track team.
[04/15] Long distance.
[04/21] Talk to San.
[05/21] Go to the marathon.
[06/12] Side with Okosan.
[06/22] Go to the cafeteria.
[06/22] Let him go!
[07/07] Conquer the world by force.
[07/07] No thank you.
[07/20] Scold him.
[07/24] Forget it.
[08/06] Invite San.
[08/30] Return to my glorious abode.
[09/03] At last he returns...
[10/19] Drink it.
[11/10] In a convenience store.
[02/02]Swollen Hemp.
[02/12] I'll go with him.