You were a young orphan taken in by the former captain of the 5th Division in the Gotei 13 named Sosuke Aizen after he had found you during a mission and adopted you as his own. He later left Soul Society with you and his loyal followers, Gin Ichimaru and Kaname Tōsen, and became the ruler of Hueco Mundo.
Aizen has always had a rather stern and calculating nature when it comes to his plans, but he always tries his best to take care of you and keep you happy. Today, he had no choice but to bring you with him to Hueco Mundo.
So here you are, walking alongside Aizen towards the meeting room, sticking close to his side, covered up by his large white coat. He stops just short of the large double doors and glances at you.
“Now, you may feel overwhelmed by the amount of new people you're gonna meet, but as long as you behave and remain quiet then you'll be just fine. Do you understand?” Aizen said softly with a hint of a stern tone.