Here is the full list of all 36 Adorable Crush achievements.
Unlock at least 4 collection
Max all traits
Buy every date gift
Create a super token by 7 token matched
Get a super token with 3 token matched
Collect 200000 Lovecens
Unlock every girl's preferences and details
Read every story
Give gifts to any girls 100 times
Finish final night date with MASAMI
Reach 5 hearts with every girl
Finish final night date with NIKO
Successfully finish 25 date
Create a 7 token matched without creating super token
Finish final night date with AKARI
Use date gift 50 times
Finish final night date with HINA
Unlock Masami
Finish final night date with SARA
Finish a final night date
Get girl drunk and date with her
Visit every locations
Successfully finish 10 date
Unlock Niko
Successfully complete a date with at least 16 Moves remaining
Unlock Akari
Unlock Hina
Successfully finish the first date with any girl
Finish the prologue
Unlock Sara
Earn 1500 or more Affection in a single move while on date
Finish final night date with every girls within 4 hearts
Finish final nightdate with every girl in hard mode
Accumulate 40 Joy in one date
Get every girl drunk at least one time
Successfully finish 10 challenge date