Here is the full list of all 23 Tell a Demon achievements.
You unlocked all of the Intrigue endings.
Two bodies instead of one in the catacombs.
Bargaining is something a demon does, Julius.
You were very brave back there.
Time has not worn away your compassion.
Nobody gets a happy ending.
You tricked a demon and escaped without dire cost.
Curiosity doesn't have to kill the cat...
Sometimes, not much needs to be said.
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.
It's not your fault you're a shadow demon. Why not embrace it?
Don't you know better than to bargain with demons?
Kalevel does not suffer fools.
Death is not the end?
Now who's going to steer the plot?
Ouch.
A bargain with the demon goddess.