Here is the full list of all 21 Perfect Gold - there are Yuri Visual Novel achievements.
Hold back with your affection.
Unlock all the achievements.
Seriously, you're not actually that concerned.
When you're colder than the breeze you could've summoned...
Assert your independence!
Get the romantic date ending.
Get the normal ending.
Embrace your yearning for someone.
Celebrate the festival.
Buy a gift for someone special.
Have a mage duel.
Offer to help a struggling mage.
Learn more about a renowned alchemist's past.
Get to know young Marion.
Attend a fancy alchemist ball.
Reach out for warmth and affection.
Get sketched during an intimate moment.
Get to know young Audrey.
Heal an injured mage.
Get that sweet, sweet freedom!
Make friends with the top alchemist.