Under appreciated Sangwoo theory
Sangwoo might be a gardener in his spare time. Or at least, he use to practice it.
In chapter one we’re shown his tool box, the first removable section having an assortment of florist materials in the compartments. From what I can tell he has stem cutters, floral tape, stem tape, and maybe corsage pins. I can’t quite make out what’s in the back sections but from the yellow color, I think it’s safe to say it may be floral materials.
This kit includes similar items! However it excludes an important tool, the stem cutters. His are yellow, which means that they’re Oasis brand, aka one of the top brands in the florist community.
In chapter four we’re shown a briefing of his pantry.
In the top shelves, he has what looks like floral foam and what could possibly be plant feed or pesticides.
The hue even seems to match the Oasis brand of floral foam (seeing has how many brands differ in color), though that could be a bit of a stretch.
Just a bit of icing on the cake, but in many images Koogi has given to us of Sangwoo (our newest one being the teenage Sangwoo), there are depictions of flowers.
This could also be something he use to do with his mom, seeing as how all of the plants in his home are dead - and he still holds onto a lot of things from his childhood, so why not this?
I could of course be wrong, but seeing as how a lot of the arrows point to this, let’s cross our fingers to see some more insight on this in season two!!