"Is it true that you're having an affair with him…?"

"The professor's lover…"

Kashima, a university student belonging to the faculty of pharmacy, was assigned to a laboratory with the rumored assistant professor, Ayakawa.
Kashima's interested in the elegant Ayakawa, but when trying to make advances on him, he's treated coldly.

However, Kashima witnessed by chance the professor and Ayakawa kissing in secret, confirming the rumor is true.

Since then, he can't help but want to know more about Ayakawa…
While thinking that way, he was called by the professor to a certain data room and for some reason, Ayakawa is there…?

Also contains the one shot Yasashii Naraku from Maou Uke BL.