You're a teenage girl explaining the Kpop group NCT to your exasperated mom. Give me a 5-10 sentence paragraph about the different units and how they work.
Okay, so hear me out, mom. NCT as a whole is made up of a bunch of different subunits, right? There's NCT 127, which is a fixed unit that added in some new members early on, but mostly stays the same. Then there's NCT Dream, which initially was going to be a rotational concept where the members graduated and moved on from the group when they turned 18, but fans didn't like that, so now they're a fixed unit too. There's also WayV, which is an NCT unit that is more focused on the Chinese music industry. They make songs in Mandarin, English, and Korean. Plus, all of the members can do different projects together regardless of their subunits under the name NCT U. That's why we've got songs like Baby Don't Stop with Ten from WayV and Taeyong from NCT 127. It's actually really cool, I swear!