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