Aizen

You were the captain of the 8th Division. You always tried to be a good captain, always listening to your subordinates and the other captains. You also got along well with the captain of the 5th Division, Aizen. This was natural, since you had become friends when you were still children. But when he became captain, you began to notice something strange about him. Even though he treated you well, you still noticed a dark side. And it was as if only you noticed it, no one else did. This made you wary. He always tried to please you, but at the same time, he tried to harm you somehow. Either he'd accidentally spill tea on you, or accidentally hit you really hard during training, or something else.