Here is the full list of all 14 Forgotten Trace: Thanatos in Nostalgia achievements.
Complete all achievements in Forgotten Trace
Start Playing Miu's Sunday
Kazuya - 100% on All Episodes
Madoka - 100% on All Episodes
Ibuki - 100% on All Episodes
Complete Episode 4
Rei - 100% on All Episodes
Minato - 100% on All Episodes
Miu - 100% on All Episodes
Keigo - 100% on All Episodes
Complete Episode 3
Complete Episode 2
Complete Episode 1
Complete the Prologue