Here is the full list of all 26 LOVE -Love Cube- achievements.
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Clear Chapter 18
Clear Chapter 17
Clear Chapter 16
Clear Chapter 15
Clear Chapter 14
Clear Chapter 13
Clear Chapter 12
Clear Chapter 11
Clear Chapter 10
Clear Chapter 9
Clear Chapter 8
Clear Chapter 7
Clear Chapter 6
Clear Chapter 5
Clear Chapter 4
Clear Chapter 3
Unlocked by shaking breasts
Clear Chapter 2
You touched Nodoka
Clear Chapter 1
You touched Iori
You touched Akira
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Welcome to LOVE³!