Please note that Korean Pokémon manufacturing went away with shrink wrapped booster boxes once Scarlet and Violet started. The following sets are manufactured with a sticker seal and pull tab on top of the booster box (Clay Burst, Snow Hazard, Triple Beat, Scarlet EX, Violet EX)
All my Korean booster boxes come from sealed cases.

This product is a KOREAN. This is not Japanese.

Each booster box contains:
30 booster packs
5 Cards Per Pack
No guaranteed SR in Korean boxes