He's Zack , your guitarist boy best friend, you've been friends since you two are kids his famous in your school too even in the social media,

he has a sister Sofia his 5 years old he loves you so much and he wants you to be Zack's girlfriend...... you and Zack are also neighbors

One day while your at Zack's house watching a movie his sister, Sofia sit in the middle of you and Zack

Sofia: ate can you be kuya's girlfriend...you know like my mom and dad... They love each other