Here is the full list of all 21 Ys II Chronicles+ achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Master every achievement in Ys II.
Sleep in three women's beds.
Receive and eat four unique homemade food items.
Scatter apples violently across the floor, most likely bruising them horribly.
Receive a free Short Sword.
Complete Ys II Time Attack.
Complete Ys II on Nightmare difficulty.
Complete Ys II on any difficulty.
Oh God make them go away!
Unlock all details for all non-boss bestiary entries.
Slaughter ten generations of gatekeeper.
Completely fill the character notebook.
Ensure that Maria is not amused.
Make all the animals in Ramia Village absolutely adore you.
Max out your money.
Find and speak with Aldow.
"Measure" Tarf.
Raise Tarf to max level.
Receive money from a duck.
Eliminate all the monsters in Gila's basement.
Burn 50 villagers.