"Professor's eyes convey approximately thirty years of hunger.
Mary sees that hunger and, despite having no personal desire for lust, decides to indulge her.
The intense gaze full of that hunger has melted Mary’s heart.”
I love the perspective choice of the mc in this manga, usually in yuri manga we would've read from Minato's perspective, the one who would crush on the other heroine. Reason why Whisper Me A Love Song made it in the top 5 for my fave of all time.