Here is the full list of all 38 Oblivious Garden ~Carmina Burana achievements.
Make tea that is fit for a princess.
Finish the special chapter.
Leave the fencing hall.
It's you and not the others.
Finally lose the friendship with Rumi.
Get the highest level in tea game.
Read all epilogues.
Watch the credits.
You finished your job, but this is not the end of the story.
Lin accomplished her dream, and so did you.
Here comes emperor of Celantu.
Something serious may happen if you were not quick enough.
Are there any secrets behind her?
It is not polite to peep at a lady's diary.
Who is that girl? You will never know.
It is destined that we meet each other again.
A lily would be nice.
Do not tell this secret to anyone.
Come across Marian at the fencing hall.
Enjoy Leira's violin playing.
From now on, you live happily ever after.
Make D rank tea for the first time.
You go your separate ways.
Unfortunately, you didn't finish your job.
The princess and the prince promised to be together forever.
Make S rank tea for the first time.
That is not a documentary fiction, my princess.
All you have to do is to be a good listener.
Some things are better left unsaid.
Meet a strange lady in a strange place.
Collect all the tea recipes.
Collect all tea ingredients.
You made the most tasteful tea.
Get S rank in all kinds of tea.
This is an unexpected ending.
You fail to satisfy the princess, dont you?
The tea you made is not good enough to win the princess.
I may, or I may not, who knows?