Here is the full list of all 70 After I met that catgirl, my questlist got too long! achievements.
You left Morpheya with Lyra!
Sparkles remembered about his past!
You unlocked all the CGs in the gallery!
You left Morpheya in Lyra's hands!
You succumbed to despair!
Raina joined the party!
You visited the Abyss with Lyra!
Lyra decided to get closer to you!
Sunny left you in Morpheya!
You left Morpheya with Sunny!
You left Morpheya with Sunny, but Téa...
You learned Sunny's full name!
You brought Lovett to justice!
You defeated all of the Westereya champions!
Dana joined the party!
You used the rose-tinted glasses!
Sunny became your girlfriend!
Celia sacrificed herself to let Téa leave!
You stayed in Morpheya with Celia! But Téa...
Alexander had a spicy surprise for Odette!
You met Negative!
You learned of a top-secret mission from the King!
Celia became your girlfriend!
You left Morpheya with Reniel!
Reniel left you in Morpheya!
You helped Leon propose to his lover!
You witnessed Reniel's defiance!
You helped Reniel eradicate the demon threat!
You dealt 9999 damage in one hit!
You fled the now destroyed Elder Tree!
Reniel became your girlfriend!
You did the impossible and made Téa leave!
You stayed in Morpheya with Téa!
You helped Téa change the kingdom!
You helped Dana make Rosedell a refuge for all!
You helped Walter and Mavis enter a relationship!
You tested your mettle against the Quizmaster!
You made Tam cast 'Light of destruction'!
You stopped the desertification of the Southills!
You listened to Téa's rousing speech!
You discovered many alchemical combinations!
You defeated your fellow challengers at the Arena!
You completed Fern's questline!
You upgraded all of Vera's skills!
You successfully fled Ostmoor!
You lit all the braziers in Ostmoor!
You learned all of Vera's skills!
You found the unabridged version of the third issue!
You met a charm wizard!
You places a crystal at the end of the Emerald Maze!
You brought Gene the elixir of youth!
You helped Alexander and his lay order!
You overworked Celia!
You helped Odette and her literacy school!
Téa became your girlfriend!
You prevented a catastrophe!
You let Sunny throw dynamite!
You got a Dice Delight in the casino!
You changed the casino's tune!
You took a day off with the girls!
You exchanged materials for money 10 times!
You gave Celia a day off!
You found Mannie's hideout!
You secretly read Téa's diary!
You chose an official name for the guild!
Celia joined the guild!
Sunny joined the party!
Reniel joined the party!
You 'established' your guild!
You started the game!