This is automatically established on 7/9 when you speak to Sae Nijima.
Rank and Status
The Judgement Arcana will ranked up automatically when key events occurs. There isn’t any special boost or stats for this S.Link.
Rank 1 – 7/9
Rank 2 – 7/24
Rank 3 – 8/22
Rank 4 – 9/13
Rank 5 – 10/12
Rank 6 – 10/28
Rank 7 to 10 – Rank will automatically MAX if you are heading to True Ending.
Sharbit Guide 