Home»Game Guides»Persona 5 Royal Guide»Judgement (Niijima) Confidant Answers
You can make any dialog choices with Niijima, and you rank up the Judgement confidant automatically as you progress through the main story. You do not need a matching arcana persona when talking to Niijima.
The Judgement confidant starts at Rank 1 on July 9, and increases in rank until Rank 10 on November 20. This means that you need to not get a premature bad ending to the game on November 10. Please click those aforementioned links and see the schedule to see what dialog choices to make to not get a premature bad ending to the game, spoiler-free.