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