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