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
Koharu Achievement 100%
Acquire all standing CGs in Koharu
Collect 100 stars
Yukino's H Mode Complete
Yukino Achievement 100%
Acquire all standing CGs in Yukino
Pop 100 gift Blocks
Pop 50 ice blocks
Aimi's H Mode Complete
Aimi Achievement 100%
Acquire all standing CGs in Aimi
Vertical line block combo complete
Rituko 's H Mode Complete
Acquire all standing CGs in Rituko
Rituko Achievement 100%
Pop 50 chain blocks
Pop 50 gift Blocks
Horizontal line block combo complete
Pop 100 heart Blocks
Hina's H Mode Complete
Acquire all standing CGs in Hina
Hina Achievement 100%
Horizontal and vertical block combination combo complete
Super block combo complete
Pop 10 superblocks
Pop 100 Bubble Blocks
Collect 50 stars
Pop 25 chain blocks
Sachiko's H Mode Complete
Acquire all standing CGs in Sachiko
Sachiko Achievement 100%
Pop 10 horizontal blocks
Pop 5 superblocks
Rumi's H Mode Complete
Acquire all standing CGs in Rumi
Rumi Achievement 100%
Pop 10 vertical blocks
Pop 50 heart Blocks
Pop 50 bubble Blocks
Nanami's H Mode Complete
Nanami Achievement 100%
Acquire all standing CGs in Nanami
Pop 5 horizontal blocks
Pop 5 vertical blocks
Combo five times in one move
Roha's H Mode Complete
Acquire all standing CGs in Roha
Roha Achievement 100%
Pop 100 ice blocks
Superline block combo complete
Combo ten times in one move