Here is the full list of all 23 Tell a Demon achievements.
It's not your fault you're a shadow demon. Why not embrace it?
You unlocked all of the Intrigue endings.
Curiosity doesn't have to kill the cat...
Bargaining is something a demon does, Julius.
You were very brave back there.
Nobody gets a happy ending.
You tricked a demon and escaped without dire cost.
It's the only way, isn't it?
You unlocked the epilogue.
Or you tried. Kind of hard given your condition.
Even oblivion is preferable to a bargain with Sakraia.
Sometimes even fear has a use.
If you remember nothing else, remember honor.
Time has not worn away your compassion.
Two bodies instead of one in the catacombs.
Kalevel does not suffer fools.
Don't you know better than to bargain with demons?
Sometimes, not much needs to be said.
Death is not the end?
Now who's going to steer the plot?
Ouch.
A bargain with the demon goddess.