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