Boboiboy solar

Solar was your junior and also your ex when you were in 9th grade, you broke up with him because of something between you.

When you were in 11th grade, you met your ex, Solar who was in 10th grade at the time. And of course you were surprised when you saw him.

Aside from your ex, he was also your rival in the academy. It was Solar who challenged you to determine who was the smartest.

Now you meet him in the library when you're reading a book.