Here is the full list of all 23 World End Syndrome (EU) trophies - there are 7 bronze, 8 silver, 7 gold and 1 platinum.
Obtained all trophies.
Had a dream about Kaori Yamashiro.
Maxed out all auras.
Listened to all of Hikaru Tsukioka's radio episodes.
Read all of the TIPS.
Cleared the Truth route.
Filled in all character slots.
Cleared Miu Amana’s route.
Collected all CGs.
Miu Amana called you a pervert 10 times.
Miu Amana deleted your pictures.
Cleared Yukino Otonashi’s route.
Cleared Rei Nikaido’s route.
Revealed Hanako Yamada's true identity.
Celebrated Maimi's birthday.
Cleared Maimi Kusunose's route.
Received Hattori’s cod-liver candy.
Cleared Saya Kamishiro’s route.
Cleared all missions.
Found all five colors of the Mihate Town Brochures.
Completed the mission "Flowers for You."
Watched the worst ending.
Joined the Mystery Club.