Here is the full list of all 23 Brave Hero Yuusha EX achievements.
Complete Chapter 4.
Complete the game.
Restore Myconia.
Restore Vexus.
Restore Canbrooke.
Collect all 25 Moon Gears and help the Moon King return home.
Talk to every cat in the game.
Complete Chapter 2.
Restore Landia.
Restore Garmuldar.
Complete Chapter 1.
Complete Chapter 3.
Collect the 7 Legendary Artifacts and awaken their power.
Complete Chapter EX.
Blatantly lie about what qualifies as good humor.
Receive a great compliment after your adventure has ended.
Reach Level 30 with at least one character. Then stay at the inn.
Fail the roaming fire puzzles 10 times.
Deal 300 damage or more using Money Madness.
Open every door in the game.
Return your library book when you are done with it.
Cast Prism Pulse while affected by both Invoke and MP Lock.
Complete the tournament at the Mitten.