Here is the full list of all 13 Nurse Love Syndrome achievements.
Cleared the sixth chapter's common route.
Cleared Hatsumi's bad ending.
Cleared Hatsumi's good ending.
Cleared Nagisa's bad ending.
Cleared Nagisa's good ending.
Cleared Sayuri's bad ending.
Cleared Sayuri's good ending.
Cleared Yasuko's bad ending.
Cleared Yasuko's good ending.
Cleared Ami's bad ending.
Cleared Ami's good ending.
Cleared Mayuki's bad ending.
Cleared Mayuki's good ending.