Here is the full list of all 60 Love Simulation achievements.
Finish the goodend
Cheers!
Meet Third Uncle
Be a Otaku
Get "The woman with deep merit" achievement in hell mode of <>
Get any bad end in normal or hard mode of <>
Get "Survival anchor" achievement in nightmare mode of <>
Get any end in easy mode of <>
Run <>
Be a faithless man
Succeed in <>
Failed in <>
Achieved ”War of Cards” Normal end I in <>
Collect a "Good guy" card in <>
The War of Cards starts in <>
Finish the special mode end02
Get "Makeshift Boyfriend" achievement in <>
Clear the hidden "Angle Route" in <>
Get "Excellent Boyfriend" achievement in <>
Get "Confused Boyfriend" achievement in <>
Get "Rational greenhat man" or "Mild greenhat man" or "Tenacious greenhat man" related achievement in <>
Get "A faithful goblin" or "A elite's goblin" related achievement in <>
Get any bad end in <>
Get "Perfect couple" achievement in <>
Get all bad ends in <>
Collect all "Good guy" cards in <>
Achieved ”War of Cards” Normal end II in <>
Get "Reconciliation" achievement in normal mode of <>
Get "Reconciliation" achievement in hard mode of <>
Get all ends in easy, normal and hard mode of <>
Get all ends in hell mode of <>
Get all ends in nightmare mode of <>
Unlock angel mode of <>
Get all ends in angel mode of <>
Finish the special mode end01
Finish the special mode end03
Finish the special mode end04
Finish the special mode end05
Finish the special mode end06
Finish the special mode end07
Finish the special mode end08
Finish the special mode end09
Finish the special mode end10
Completion of blind date
Marry her girlfriend
Be dead drunk
Escape successfully
Snubbed girlfriend
Be a honest man
Quarrel with her
Failure to express love
I Love U
Talk game with her
Calm down first
No one found out
Have a good dream