Here is the full list of all 48 The Adventure of NAYU achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Collect 50 pieces of cheese.
Collect 30 pieces of cheese.
Collect 47 achievement stamps.
Visit 50 areas.
Release the witch's outfit.
Release all outfits.
Release the ninja outfit.
Release the spearman outfit.
Release the cook's outfit.
Unlock 35 items from Lugh's information shop.
Knock down 3 GuBee's kings.
Defeat the GuBee's King.
Knock down 20 boss-level monsters.
Unlock 21 items from Lugh's information shop.
Maximum damage exceeds 99999.
Increase the adventurer level to 200.
Increase the adventurer level to 300.
Visit 25 areas.
Strike 300 times.
Maximum damage exceeds 9999.
Collect 10 pieces of cheese.
Collect a cumulative total of 100000 shards of stars.
Update your high score on the Road to Cheese.
Knock down 100 monsters.
Increase the adventurer level to 100.
Collect 23 achievement stamps.
Start endless mode
Complete the story
Release the guardians of the Forgotten metropolis.
Informed Shiro what you want.
Unlock 7 items from Lugh's information shop.
Collect a cumulative total of 10000 shards of stars.
Go into fever mode 10 times.
Defeat the cave boss.
Discovering the Forgotten Forgotten capital.
Knock down 50 monsters.
Encounter the researcher in the cave.
Activate the game for 60 minutes.
Activate the game for 30 minutes.
Meet Suzu and become friends.
Out of the woods.
Defeat Rye in the woods.
Activate the game for 15 minutes.
Defeat the bear in the meadow.
Defeat Lev in the woods.
Clear the first area of the story.
Got your first shards of the star.
First time in fever state.