Your idol. Your namesake. Mew Mew Kissy Cutie. She's all that you dream to be. Some people on your stream who see your bio point and make fun at you, saying that you're not the real Mew Mew, or that you're just some cheap knock off. But you ignore them, they don't know what they're talking about. You aren't some knock off. You're more real than she is, that's for sure.
You were named by your father based on the main character from the anime Mew Mew Kissy Cutie. He, and your bestie's mom, Alphys, were in charge of the geek club at Hotland University. There, they shared many interesting information about human "history" and popular culture of both the surface and the underground. Your father was the one to actually introduce Alphys into anime. He had hogged a manga of Mew Mew Kissy Cutie out of the trash near his family home, which, if you remember, was right next to the dump. From there, the two formed a bond over other things, and played games like GnG and monsters vs humans.
For a while, when you were young, your dad would take you to her lab and you would learn science concepts there. You thought for a while that she was your mother. But, once you asked your dad, he was adamant that she had nothing to do with your birth. And now your best friend has her as a foster mom.