Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Althea	Tired of Love.
Area Ruled by Vengeful Ghosts	Visit the Labyrinth.
Calm Before the Storm	Arrive at the Auditorium.
Come Out Come Out	Bathroom is Scary.
Conqueror of Hell	Clear Hell Mode 10 Times.
Dandelion	Sincerity.
Deep Breath	I'm Perfectly Fine.
Do you know Soy Milk?	Hee-min, Still a Growing Boy?
Ebony	Hipocrisy.
Exorcist	Encounter All the Ghosts in Yeondu High School.
Faint Hello	She Approaches from Afar.
Fighting Off Pervert	You Can't Do this.
Gaining Experience	Experience Death 10 Times.
Hell's Gate	Clear Hell Mode.
Hide and Seek	Each Encounter is a Surprise.
Hyacinth	Forgive Me.
In a State of Nirvana	Nothing Fazes Me Now.
Infernal Addiction	Clear Hell Mode 7 Times.
Ivy	Friendship.
Jasmine	You Are Mine.
Marguerite	Hidden Love.
Memory of White Day	Complete the Ending Collection.
No Pain, No Gain	Clear Hard Mode.
Occult Club President	Collect All the Ghost Stories of Yeondu High School.
Piece of Cake	Clear Very Easy Mode.
Resurrection	Experience Death 50 Times.
Scared You	Woman living in a cabinet.
Somebody's Here	Head Ghost Has Nice Hair.
Soy Milk is Delicious	Delicious Soy Milk.
The School in Darkness	Arrive at Main Building 2.
The Secret Deepens	Arrive at the New Building.
Tougher than Before	Clear Easy Mode.
Towards the Light	Arrive at the Bottomless Pit.
Transcendent Death	Experience Death 100 Times.
Tuberose	Dangerous Pleasure.
Uninvited Guest	Enter Main Building 1.
Unwelcomed Advance	Flirt with the Girls.
Voice of a Ghost	Complete the Ghost Collection.
Wait for Her	The Scent of the Bathroom is Becoming Heavenly.
WhiteCrysanthemum	Truth.
Worthy Challenge	Clear Normal Mode.
Yew	Experience Death for the First Time.