At first, Li Zhi would quietly check the notebook for his mistakes that Shen Yuan kept on the corner of his desk, pointing out that some of his solutions weren't fully optimized.
Later, as Shen Yuan followed her review pace and strengthened his foundational knowledge, his thinking became increasingly clear.
The notes she left in his notebook gradually dwindled, becoming an occasional, more concise supplementary solution, or sometimes just a simple "Checked."
More often than not, she would do just as she was doing now at the end of the evening study session: pack up her things and then sit quietly beside him, waiting.
Her gaze was no longer impatient, but a quiet, focused stare that rested on Shen Yuan's side profile, which looked especially serious as he concentrated.
She watched him rapidly scribble calculations on his scratch paper, the tip of his pen making a soft, rustling sound against the page.
