Here is the full list of all 51 Conception II: Children of the Seven Stars achievements.
Earned all achievement.
Clear the Labyrinth of Wrath.
View all Serina Events.
View all Torri Events.
View all Narika Events.
View all Chloe Events.
View all Ellie Events.
View all Fuuko Events.
View all Feene Events.
Clear the normal ending.
Clear the harem ending.
Clear the Feene ending.
Clear the Torri ending.
Clear the Serina ending.
Clear the Chloe ending.
Clear the Narika ending.
Clear the Ellie ending.
Clear the Fuuko ending.
Clear the Pandora Labyrinth.
Amass over 1,000,000G.
Clear all sub-Labyrinths.
Clear the Labyrinth of Pride.
Instantly killed monsters 100 times.
Give birth to a Star Child of each class.
Increase the city's level to 100.
Have 100 Star Children go independent.
Mecunite a total of 30 times.
Experience your first Trimating.
Increase the city's level to 30.
Increase all facilities' level to MAX.
Give gifts to the heroines 30 times.
Receive money from your Star Children 30 times.
Clear the Labyrinth of Envy.
Perform a total of 100 Chains.
Perform 30 Intercepts.
Use skills a total of 500 times.
Give birth to 100 Star Children.
Unlock all facilities.
Clear the Labyrinth of Sloth.
Take every heroine into the Labyrinths.
Check sub-events 30 times.
Clear the Labyrinth of Greed.
Defeat 500 monsters.
Attack a total of 1,000 times.
Have 10 Star Children go independent.
Clear the Labyrinth of Gluttony.
Clear the Labyrinth of Lust.
Defeat 100 monsters.
Give birth to 20 Star Children.
Give birth to your first Star Child.
Defeat a monster for the first time.