She Reads me Like a Book.

Masuda Masato has found the way to success, but to achieve it he needs two attributes: Complete Control Over His Emotions and Not Letting Anyone Know What He's Thinking. But his plan has an obstacle: Tanaka Akaya, his schoolmate and library partner. Why is she an obstacle for his plan? Because she always knows what he's thinking, and he's completely in love with her.

[Present-Day - Teenage Love]