That glowing in the dark thing is real, I dropped my text to #ccc too and it fixed everything lol

I mean, a $40 Clannad set is a good deal I guess, but is this really "gold in a bin" territory? That show is everywhere. You can find it at Half Price Books or on eBay any day of the week for around that price, box wear and all. It's not like you dug up some rare OOP release that nobody can find anymore. People act like every flea market find is a treasure hunt when half the time it's just stuff you could've ordered online from your couch. Not trying to rain on your parade, the discs play and you saved some cash, that's cool. But gold? Come on man, it's a used anime set.

Roofers say the same thing about shingles, that the one spot you can see is never the real problem, it is always the low corner you cannot see from the ladder. Same deal with driveways, decks, even gutters. Water always finds the one spot that is off by a hair and then it just keeps going there for years. A bubble level only shows you one small area at a time so it misses the big picture. What worked for me was a cheap laser level on a tripod and a tape measure, marking the height at each corner and comparing them. You can also lay a long straight board across the slab and see where the gap opens up. If the corner dropped 2 inches over 6 years, something under it is probably still moving, so watch it after the next few hard rains.