When you ride your scooter on the ground listening to music under the sun, you're bound to encounter a bunch of new people! They hear your music playing as you scoot by and they come out to meet you.
Everyone you encounter wants to bare their soul (そう) to you, literally. They're all coming out to meet you, pulling back their skin and showing you the soul ghosts inside of them.
Currently there are no similar looking kanji which exist in the WaniKani learning system