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