Ooooooo I think Jin Woo put a shadow soldier in someone’s shadow!! That way he can teleport immediately if needed!!
Yes, in the end of chapter 93.
http://www.mangago.zone/read-manga/solo_leveling/mdx/mpn_chapter-2139223/pg-24/
I can’t even begin to describe how many times I laughed, cried, smirked, and almost threw my phone over how adorable this is. It’s such a beautiful (and really bad) misunderstanding (≧∀≦)