She sat in front of him on the right side, and he could see her serious back when he raised his head.
Her long black hair hangs gently on her shoulders, and occasionally slides to her cheeks when she writes.
She rarely smiles, even a little darkly. But the second he saw her smiling, the whole world lit up.
She had never trusted anyone easily, except him.
That face that was very calm all the time made her feel at ease whenever she saw it.
And when that person appears in her life again, what will she do?