Unlike the October launch, which carried a single dummy satellite, Nuri this time will be loaded with a 180-kilogram performance verification satellite to test the rocket's capabilities and four separate cube satellites developed by four universities for academic research purposes.https://m-en.yna.co.kr/view/AEN20220613004300320?section=news
These are the mission payloads:Performance Verification SatelliteCubeSat (6U) STEP Cube Lab-ICubeSat (3U) SNUGLITE-ICubeSat (3U) MIMANCubeSat (3U) RANDEVAttached is a file with all the mission information.
A little more information in Korean on payloads