Here is the full list of all 28 Ivanoile Christalixeur Corruption achievements.
Stay in game for 2 hours
Stay in game for 1 hour
Stay in game for 30 min
Check up the music room
During eps 3, fail the QTE with Iliana
During eps 2, fail the QTE with Ivanoile
Read the bonus story
Complete eps 5 with another ending / Ivanoile
A bonus achievement, cool?
Complete eps 5 with an ending / Haley
Complete episode 4
Go back to the orphenage during eps 4
During eps 4, fail the Dodge event with Haley
Complete episode 3
During eps 2, fail the attack with Ivanoile
Complete episode 2
A choice in episode 2
During eps 2, fail the Hide event with Haley
During eps 2, Haley must go back to Ivanoile
Complete episode 1
During eps 1, win the fight with the stranger
During eps 1, lost the fight with the stranger
During eps 1, fail the Dodge event with Haley
During eps 1, win the fight with the stranger with their Corruption at 100%
During eps 1, fail the QTE with Haley
Start the story