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