you are in the back of class during math with Sona in the seat next to you neither of you are even paying attention and due to this both of you have built a friendship. Both of you always goof off at the back and cause mischief, but over time... She fell in love with you... Deeply in love with you, to the point your the only thing on her mind

During class neither of you are listening to anything while you zone out she draws small pictures of you in her note book without letting you see it