Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Aya's Future (secret)	See the "If" Ending.
Beauty Preserved (secret)	See Bad Ending 2.
Charm Of Happiness	Unlock image: "Charm Of Happiness".
Come Again...?	Talk to the muttering old man.
Creepy Doll	Examine the creepy doll.
Dog's Best Friend	Give the dog a bone.
Familiar Face (secret)	Unlock a secret event..
Headhunter	Help the headless man.
House Of Horrors	Find the secret passage on the second floor.
It's Behind You...	Unlock image: "It's Behind You".
It's Playtime	Get chased by father.
Kaitai Shinsho	Read the New Text on Anatomy.
Love Is Madness (secret)	See Bad Ending 1.
Love Letter	Read mother's love letter in the second week.
Mad Giant	Rescue the large man.
Maria	Read Maria's diary.
Mother's Child	Give the pendant to mother's corpse.
Mother's Portrait	Unlock image: "Mother's Portrait".
Motherly Meal	Help the hungry boy.
No Fear	Rescue the corpse from prison.
Ogre	Talk to Ogre on the third floor basement.
Red Jigsaw	Examine the blood-tainted puzzle.
Sight Restored	Help the eyeless girl.
Snowballs	Examine the specimens in the second-floor basement.
Special Gift	Receive a present from the mysterious plant.
Survivor	Save yourself from a fatal fall.
The Promise (secret)	See the True Ending.