Here is the full list of all 16 London Detective Mysteria trophies - there are 2 bronze, 4 silver, 9 gold and 1 platinum.
Obtained all trophies.
Completed all epilogues.
Discovered all event artwork in the game.
Persevered to the very end.
Discovered true love with Lupin.
Discovered true friendship with Kobayashi.
Discovered true love with Akechi.
Discovered true love with Jack.
Witnessed a performance you'll never forget.
Discovered half of the event artwork in the game.
Recorded the day's events for the first time.
Discovered true love with Watson.
Discovered true friendship with Marple.
Discovered true love with Holmes.
Gathered everyone for a lovely picnic.
Completed the prologue.