Here is the full list of all 58 Sayaka achievements.
To be Continued
Kazuma
Go Home
Chando
Kill22
Hit
Kill17
Kill21
Kill20
Kill19
Kill18
Prepare
Now What?
Mercy
Fuji
Kill15
Kill16
Kill14
Kill13
Kill12
Kill11
Kill10
Kill9
Kill8
Again!
Inner alley
Blue door
Koji
Kill7
Kill6
Kill5
Kill4
Kill3
Kill2
Kill1
Killing Time
Second Blood
Third Blood
Fourth Blood
Fifth Blood
First Blood
Intruder
Take your first steps
Later
Mission Accepted
Start
Hello