Below, you can find a detailed list of silver trophies to be unlocked. Attention! This chapter contains spoiler that can ruin your fun playing the game!
A Perfect Job
Complete all requests.
You have to have all relationships with Confidants at least at Rank 8, take two shifts in Flower Shop, four in Convenience Shop, and two at Crossroads in Shinjuku. You have to complete them before 12/22.
A Unique Rebel
Defeat the Reaper.
Reaper is a hidden enemy in Mementos. If you don't fight anyone for about 5 minutes, he will appear and attack the party.
Complete the Persona Compendium.
You have to use fusions on all Personas, which is incredibly time-consuming and can take even several different playthroughs to complete.
Hear 250 of Futaba's navigation lines.
A very time-consuming and annoying achievement. You have to listen to 250 of Futaba's lines who comments on enemies, various statuses in combat, failures, and so on. You'll manage to listen to most of them in one or two playthroughs.
One Who Rebels Against a God
Only possible in NG+. You have to fuse Arsene, Ishtar, Anzu, Hiero, Lucifer, and Michael in Group Guillotine.