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