Here is the full list of all 37 Sakura Dungeon achievements.
Win the game on hard mode.
Win the game on abyssal mode.
Defeat Yomi.
Defeat Hiriko.
Find every outfit in the game.
Defeat Izanami.
Recruit the Ryuuou into your party.
Discover the fox girl's ship.
Defeat the dungeon lord.
Recruit the Spirit Guardian into your party.
Recruit Anubis into your party.
Win your second battle against the succubus.
Recruit the Reaper Twins into your party.
Reassemble the state of Fortuna.
Recruit the chocolate mimic into your party.
Recruit the Queen Bee into your party.
Make the observatory operational again.
Step into the Abyss.
Defeat the reaper twins.
Acquire the warp gem.
Recruit the Sand Sentinel into your party.
Collect 10 outfits for your wardrobe.
Give Anubis an offering of milk.
Defeat 1,000 enemies.
Avoid an assassination attempt.
Recruit Maeve into your party.
Find all of the swimming wear outfits.
Use Yomi in your party.
Acquire the Astral Blade skill for Ceri.
Drive away the warrior from the shop.
Recruit Sylvi into your party.
Defeat the first floor guardian.
Clear the first floor of the dungeon.
Acquire the Dual-Soul ability for Yomi.
Recruit Captain Bonny into your party.
Defeat 2,500 enemies.
Defeat 5,000 enemies.