Mwave
MWave is a website operated by Mnet, which is owned by CJ, one of South Korea's largest corporations. If you've been following Kpop for any amount of time, you're definitely already acquainted with MNet, which is one of Korea's largest music networks and home to several well-known music shows. MWave purchases, as expected, contribute to the Hanteo Chart.
MWave now carries a limited range of Kpop merchandise, and the items are frequently rather pricey. They do, however, have one really amazing selling point: they have a lot of signed CDs and bundles. If you're interested in a new or upcoming album, I recommend checking out MWave because they may have an autographed version! Of course, the signature process can take some time, and records purchased here may take several months to arrive. However, the fact that signed CDs are freely available will make the wait worthwhile for any die-hard fan.
Website: https://www.mwave.me/