Here is the full list of all 10 Five Nights at Backrooms: Waifu Edition achievements.
Survive the first night.
Survive the night with 0% energy.
See the secret message in the "Help" menu.
Turn off screamers in the menu and see the screamer.
Die for the first time.
Reflect the attack of a red entity.
Have maximum energy consumption.
Mute the Phoneguy.
Survive 5 nights.
Survive "Nightmare" mode with all dolls' AI equal to 20 in Custom Night.