Residual Thoughts

Summary
Residual Thoughts are markers on investigation maps that only Wato can properly pick up and inspect. Doing so unlocks a skit cutscene for the character who's item was picked up. RTs only appear in a map if you've S-ranked the previous chapter's investigation, or in some cases, on a New Game + game file. After unlocking the ones available in investigations, a final RT is unlocked in the main menu gallery.