Here is the full list of all 12 Namaiki Dark Elf Sisters achievements.
Spill your seed with your choices more than 5 times.
Time is money. Gotta do it quickly.
I'm not done tasting it yet.
Dark elves are superior to other elves.
Think about all the broken hearts.
Letting it out inside is the symbol of love.
Paint the walls white with your choices more than 5 times.
The cat is out of the bag.
Let’s establish a new religion.
The first experience turned out to be quite rough.
My precious white liquid was stolen!
Hence the story begins.