Here is the full list of all 55 WISH - there are Paradise High achievements.
Midori's H Mode Complete
Midori Achievement 100%
Acquire all standing CGs in Midori
Koharu's H Mode Complete
Acquire all standing CGs in Koharu
Collect 100 stars
Yukino's H Mode Complete
Acquire all standing CGs in Yukino
Pop 50 ice blocks
Aimi's H Mode Complete
Acquire all standing CGs in Aimi
Aimi Achievement 100%
Pop 100 gift Blocks
Rituko 's H Mode Complete
Rituko Achievement 100%
Acquire all standing CGs in Rituko
Combo ten times in one move
Pop 50 chain blocks
Pop 50 gift Blocks
Pop 10 superblocks
Pop 100 heart Blocks
Hina's H Mode Complete
Acquire all standing CGs in Hina
Hina Achievement 100%
Collect 50 stars
Pop 5 superblocks
Pop 100 Bubble Blocks
Superline block combo complete
Sachiko's H Mode Complete
Acquire all standing CGs in Sachiko
Sachiko Achievement 100%
Pop 25 chain blocks
Rumi's H Mode Complete
Acquire all standing CGs in Rumi
Pop 10 horizontal blocks
Pop 10 vertical blocks
Pop 50 heart Blocks
Pop 5 horizontal blocks
Pop 50 bubble Blocks
Nanami's H Mode Complete
Nanami Achievement 100%
Acquire all standing CGs in Nanami
Pop 5 vertical blocks
Combo five times in one move
Roha's H Mode Complete
Roha Achievement 100%
Acquire all standing CGs in Roha
Pop 100 ice blocks
Horizontal line block combo complete
Vertical line block combo complete
Horizontal and vertical block combination combo complete
Super block combo complete
Rumi Achievement 100%
Yukino Achievement 100%
Koharu Achievement 100%