Here is the full list of all 20 The Seven Districts of Sin: The Tail Makes the Fox - there are Episode 1 achievements.
Finished chapter 1.
Finished chapter 2.
Finished chapter 3.
Finished chapter 4.
Finished the prologue.
Finished chapter 5.
Sometimes, a gumiho just has to go for a run.
Daydreams can be nice, too, even if they'll never come true.
Told Lucifer the truth about Anzu.
Some things are more important than the truth.
Even after all that work, the gumiho couldn't finish her report.
The poor gumiho met an unfortunate demise.
Achieved Anzu's ending.
One should always watch where they're walking.
Achieved Saleos' first ending.
Achieved Saleos' second ending.
Achieved Kali's first ending.
Achieved Kali's second ending.
Achieved Gaki's first ending.
Achieved Gaki's second ending.