Here is the full list of all 17 Never Meet Your Heroes achievements.
You came from a magical background
You were raised by the Greek goddess
You came from a hunting background
You came from a business background
You came from an empty background
You met Ares
You joined the Adente Family
You completed Talia's storyline
You completed the introduction
You found the cure!
You freed the giants
You chose to keep the giants enslaved
You discovered Hot Sabre's name
You discovered Ice Wizard's name
You discovered Sound Wave's name
You cheated your way through the freedom exam
Dia became your girlfriend