A love story about two university students who can't proceed from "friends" to "lovers."

Tsukumo is a plain and unremarkable university student. As he's preparing to head home from his university lectures, Mao Yoshida, a solitary beauty, passes by. Tsukumo and Yoshida have an intimate relationship, but because Yoshida is so expressionless, their relationship can't seem to make any progress...

(Source: Kadokawa, translated)