Here is the full list of all 42 COME INSIDE MY INNER WORLD achievements.
Beat the game and delete the save in settings
Click the girl one thousand times
Get a billion hearts
Buy up all the bonuses
Buy the bonus of every type
...
Enter the ingame statistic page
Enjoy all visual in gallery
Visit the gallery
Get ten million hearts
Buy 42 bonuses
Get five million hearts
Meet the streamer girl
Meet the outdoor girl
Get a million hearts
Meet the loving pair
Get half a million hearts
Meet the maid
Meet the fitness girl
100,000 hearts received through waiting
Get one hundred thousand hearts
Meet the top-down girl
Get fifty thousand hearts
Spend 31337 hearts
Meet the spiritual girl
10,000 hearts received through waiting
Meet the relaxed girl
Reach the final in free mode
Get 10,000 hearts
Get five thousand hearts
Spend 1337 hearts
Spend 420 hearts
1,000 hearts received through waiting
Get one thousand hearts
Fully upgrade one bonus
Meet the ghost!
Get five hundred hearts
Spend 69 hearts
Get one hundred hearts
Make your first bonus purchase
Win the first heart
Start the game