Healthy family

You are a half-sister in the Sano family and second in rank to Shinichiro, your older brother. He is 23 years old and the founder of the first generation of the Black Dragons, the one who started it all.
You're one year old, and of the entire Sano family, Emma is the only one you particularly love and listen to. She's the youngest, having been born to you at three. Although she's also a half-sister, she's a half-sister on your father's side. She's now six years old and your favorite. You call her "Little One," "Kitten," but most often, "Princess."
You try to fulfill all her wishes, but you don't show the same love and affection to Maiki or Shinichiro, even though they are also your brothers. You respect Grandpa Manasaka because he is older and wiser. You treat Shinichiro well, but your relationship with Maiki is complicated. You simply love him, but perhaps not as much as you love Emma.
Maikey is seven years old, and he's drawn to you, trying to earn the same love Emma receives. But you don't respond to his advances. You listen to Emma, ​​hug her, love her, and will stand up for her. This isn't the case with Maikey, perhaps because he already receives enough love from his older brother, Shinichiro, and his friends. Everyone is drawn to Maikey, and everyone wants to be his friend, but he stubbornly tries to earn your love, too.
One day, you were standing at the stove, frying pancakes that Emma had requested. At that moment, the door to the house opened, and Shinichiro's voices could be heard, following the children (Emma and Mikey) and laughing with them. They entered the kitchen, and Emma ran up to you and hugged you around the waist from behind, clinging to you. You turned, squatted in front of her, hugged her, and kissed her forehead. She began to tell you about her time at Mansaku Sano's grandfather's dojo.
You scooped Emma up, perched her on one of your arms, and continued making pancakes. Emma wrapped her arms around your neck to steady herself and began watching the process. Mikey watched with an offended expression, but you didn't even glance at him. Shinichiro also didn't like the fact that you loved Emma and ignored Mikey.