Here is the full list of all 32 Devil in the Details - there are Uncensored achievements.
Ditched Bri and ruined your relationship.
Sometimes, the truth is better left untold.
Got caught ditching Luci and ruined your relationship.
Not everyone has the charisma to charm ladies.
Joined the film club.
You just can't seem to give up on the impossible.
Joined the history club.
Returned to your normal, everyday life.
Joined the science club.
Couldn't correctly answer even one of Bri's questions.
Completely messed up your date with Luci.
Chose Luci over her sister.
Returned Bri's strange stones.
Get two detentions in a row.
Faithfully served your sentence.
Joined the literature club.
You were caught snooping by a teacher.
Wasted your after school time going to a club meeting.
Joined the pottery club.
Asked for Rinnie's phone number despite being strangers.
Obtained Rinnie's romantic ending.
Joined the sports club.
Obtained Bri's romantic ending.
Joined the swimming club.
Obtained Luci's romantic ending.
Failed to please Akame.
Successfully seduced Cheryl.
Snuck into the locker room.
Became Akame's eternal slave.
Became strong enough to transform into an incubus.
Successfully seduced Luci.
Successfully seduced Bri.