Here is the full list of all 53 Ghost Marriage Matchmaking achievements.
I can still feel the warmth of Luna. (Buy the pants in shop)
Owns 150000 gold.
Spirit reach 550000.
Touch action level max.
Purify action level max.
Burn action level max.
Work action level max.
Train action level max.
Touch oppai 10 times.
Touch oppai 20 times.
Touch oppai 30 times.
Diane mind reach 100.
Diane resentment reach 0.
Yuan mind reach 100.
Yuan resentment reach 0.
Trigger by Diane's Resonate event 6
Trigger by Diane's Cleanse event 6
Trigger by Diane's Burn event 6
Trigger by Diane's Petting event 6
Trigger by Yuan's Resonate event 6
Trigger by Yuan's Cleanse event 6
Trigger by Yuan's Burn event 6
Trigger by Yuan's Petting event 6
Trigger by Outside Park links event.
Trigger by Outside Cemetery links event.
Trigger by Outside Temple links event.
The first time visiting Park
The first time visiting Cemetery
The first time visiting Temple
Trigger by specific Park event
Trigger by specific Cemetery event
Trigger by specific Temple event I
Trigger by specific Temple event II
Trigger H story in OutSide event.
In main story, choose to clean Diane's room.
In main story, choose to revenge.
In main story, let Diane go.
In end, choose Diane.
In end, choose Yuan.
In end, choose Diane&Yuan.
In end, just look and do nothing.
Trigger all endings.
Trigger Diane gameover H event.
Trigger Yuan gameover H event.
Save manually and get SSR Diane.
Save manually and get SSR Yuan.
All CG Unlocked.
Burn up four items at a time.
Let the ghost live 20 days.
Let the ghost live 30 days.
Let the ghost live 50 days.
Trigger all the Pink Demon events in Outside event.
Getting all achievements.