Zero is 10 and Sakura is 9.
Morning~
Zero's POV~
I woke up early and went to see mama cooking breakfast.
Zero: Morning mama.
Mother: Morning sweetie.
Sakura: Good morning big brother !!!
Zero: Good Morning to you to pinkie.
Sakura pouted. She hated being called pinkie. Papa walked down the stairs and greeted all of us with a good morning face. We ate breakfast and after that me and Sakura walked to the park. I told Sakura to wait at the park while I buy some dangos. But when I came back there was 3 boys around Sakura. One of the boys was pulling on Sakura's hair calling her a weakling. I ran to the boy who was pulling on Sakura's hair and punched his disgusting face. The other 2 boys ran to me but I was right behind them in a second and pulled both of their hairs and bang their heads together. Those 3 boys ran crying. I went to Sakura who was crying.
Sakura: B-big brother do you hate me because am weak to?
She sobbed.
Zero: Big brother would never hate you.
Sakura was in my chest crying and sobbing. I wiped the tears on her face and look at her. She look back at me.
Zero: Big brother wants you to stay strong. It brakes my heart to see you sad and cry.
Sakura smiled and put up her pinkie finger.
Sakura: Okay, I promise big brother that I will stay strong till the end!
I smiled at her.
We made a pinkie promise.