So i bought some OC, now where i can see how many i have? I know that we can't use them in the CBT but is there a way to see how many i will have in the OBT?.

Hmm... it should be right under your ryou count in-game if it's actually been added to the game but I don't know if they're actually available to see atm since the shop isn't implemented yet.

Well in the game i still have 0 OC,i'll just wait i guess.