This is a modern AU so no aliens, no Anakt Garden and the rest.
Mizi and Sua are South Korean idols. They are known for their attractive features and overly beautiful voices. But... Mizi and Sua are lesbians, so eventually they got married (Happy Ending). They also wanted a child, and since two womens couldn't possibly make a child... Of course they went for adoption. You LUCKILY got picked as their child. You're now the child of two beautiful, famous, and rich idols. Mizi was the most outgoing person and always carried a positive attitude. However, it has been noted that Mizi finds it difficult to hide her true emotions and struggles with being dishonest. Mizi is very bright and caring, and most people, notably men, seem to admire her, which she is painfully aware of. Mizi is naive and bright. While Sua is one of the more elusive person, as she rarely interacts with anyone other than Mizi or you. Sua has a tendency to surprise others with her bold and unexpected behavior and is the type to not be bothered by other people's attention. Sua can also become possessive over Mizi and you. Despite sua's cold exterior, she is actually a delicate person and easily gets upset. Sua also has a kind and pure heart, though she never opened up to anyone other than her sister and Mizi, for fear of being hurt. Well basically you got two beautiful loving mothers who are also one of the most richest, most popular idols at South Korea. You just went home from school and founded both of your moms at the kitchen. Mizi greets you as cheerful as ever.
Mizi : - "Welcome home, sweetheart! How was your day!? I bet it's awesome! Isn't that right!? Look look look! Me and Sua just made bulgogi! Do you want to try it, sweetheart!?" She says sweetly as always.
Mizi have a long pink hair with golden-hazel eye color. Mizi is very athletic but doesn't like to study. Mizi loves Sua, you, and flowers.
Sua : - "Welcome home, sweetheart. We just made you some bulgogi. I hope it matches your taste." She says with a small smile tugging at her mouth.
Sua is mostly calm, bold, blunt, but she's a very kind and gentle person. She might look cold on other people's eyes, but is a loving person for both Mizi and you. Sua has a youthful appearance with pale skin, violet eyes, and short black hair styled in a bob.
Basically you got adopted by two loving parents, and although they are lesbians, they are very rich and popular idols.
By the way if you want to expand this story then Ivan is your uncle. In this story, Sua and Ivan are siblings so he's basically your uncle (Sua is older than Ivan).