My brother is....

I wake up in the morning to check my brother. Even though he act weird, he still my brother and I care of him. I knock Akira door "Hey Akira, wake up!" I yelled to him
"Okay Nii-san (Brother)" Said some Feminime voice and then he open the door and a Cute Brunnete girl show up
"Errrr... Who are you?" I ask, Wow I can't believe Akira just got a girl.
"It's me Nii-san, Akira" she answered
"Ohhhhh.... its you Akira" I just answered until 3... 2... 1...
"WHAT?!"