Here is the full list of all 33 Witch and Lilies achievements.
Reached the 1st layer.
Defeated the Cavern Spider Imposter.
Reached the 2nd layer..
Defeated the Scorching Dragon, Lava.
Reached the 3rd layer.
Defeated the Profane Corpse.
Reached the 4th layer.
Defeated the Living Donor Hands.
Reached the 5th layer.
Defeated the Mother of Wrath
Reached the Ending.
Reached the 6th layer.
Defeated the Master Examiner.
Defeated the Unburnt Dragon Lord.
Defeated the Hero's Crematorium.
Defeated the Eternal Sentry.
Defeated Frost Blade Golem & Ice Shield Golem.
Defeated the Experimental Body
Defeated the 99th Hell.
Defeated the Ancient Errant.
Got Warrior in the party.
Got Knight in the party.
Got Wizard in the party.
Got Healer in the party.
Got Necromancer in the party.
Got Bard in the party.
Got Scout in the party.
Got Digger in the party.
Got Bestia in the party.
Got Sylvan in the party.
Adventurers have become Partners.
Raising Adventurers to Level 99.
Obtained more than 100,000 G.