Here is the full list of all 42 Hyperdimension Neptunia Re;Birth3 V Generation achievements.
You cleared Chapter 8.
You cleared Chapter 6.
You have fought 500 battles.
You cleared Chapter 5.
You inflicted over 100,000 damage against a foe!
You cleared Chapter 4.
You performed a 100-hit combo.
You cleared Chapter 3.
You cleared Chapter 2.
You made your own disc via Disc Dev.
You have entered Neptral Tower.
You have fought 100 battles.
You cleared Chapter 1.
You cleared the Prologue.
You set up an original combo.
You activated a Plan.
You have survived your first fight.
You chose to start the game. Here's your reward!
You've nabbed every single trophy. Nice!
You cleared Chapter 7.
You cleared Chapter 9.
You have achieved the Normal Ending.
You have achieved the Good Ending.
You have achieved the True Ending.
You defeated Regu and Bamo.
You leveled one character to 99.
You leveled all characters to 99.
You created a Godly Game via Disc Dev.
You have activated 200 Plans.
You have cleared Neptral Tower.
You have cleared 100 Quests!
You finally collected 100 million Credits. Was this your last trophy?!
You maxed out Neptune's Lily Rank.
You maxed out Plutia's Lily Rank.
You maxed out Noire's Lily Rank.
You maxed out Blanc's Lily Rank.
You maxed out Vert's Lily Rank.
You maxed out Nepgear's Lily Rank.
You maxed out Peashy's Lily Rank.
You maxed out Uni's Lily Rank.
You maxed out Rom's Lily Rank.
You maxed out Ram's Lily Rank.