Here is the full list of all 29 Light Fairytale Episode 1 achievements.
Do a 250+ single HP damage to an enemy.
Complete Kuroko's story.
Complete the main story in episode 1.
Get an orb from the ex-number one.
Get a high score of 75+ in the stealth minigame.
Get a high score of 100+ in the stealth minigame.
Went to the corridor with Miyu's materials.
Get caught during the stealth minigame.
Reach the fury status during battle.
Check the class 3 A.R. goggles before talking to Daisuke.
Get the credits after the fortune teller event.
Check the fizzle vending machine before the fortune teller event.
Do a 100+ single HP damage to an enemy.
Use the A.R. goggles enough before the 1st battle.
Win your first battle.
Talk to angry Kuroko.
Talk to the sprinting scavenger.
Overhear the station soldiers talking.
Almost fall off the cliff.
Find hiding Kuroko.
Check Haru's place.
Talk to some NPCs from behind.
Get a bomb from the hiding cat girl.
First optional event.