She met him in junior high school and she fell in love with him.
She didn't know that he liked her;
She didn't know that he was protecting her;
She didn't know that he had bipolar disorder after her death;
He didn't know that she liked him...
In a corner, he was loving her and protecting her.
He protected her, but he couldn't withstand the hardships given by fate.
Before she died, she fully expected him to see her off, but there was no sign of him.
He didn't tell her what he always wanted to say "I like you" until she died.
Purpose: The male and female protagonists protect each other