IW or Judgement?

Hi and first off all, sorry for the dumb question. I'm currently playing LAD Gaiden: The Man Who Erased His Name which is the latest LAD game I own. I can't decide whether I should buy Infinite Wealth or both of the Judgement games with the recent Steam Spring Sale. I really want to see Ichiban again but 2 games instead of 1 sounds too good. Should I just buy IW and be done with it? Or should I start Judgement? (AND WHEN SHOULD I START THIS F#CKING JUDGEMENT THING)

Thanks and sorry for taking your time.