Gravity Eyes

This series is a spin-off of Tsumasaki ni Kiss following the character of Kyouya.
from Dangerous Pleasure

Kyouya has left hosting to go to university and work at a regular job. That is when he meets an assistant professor, Kiriya, whose "cold eyes" have drawn him in.

Kyouya's problems begin with his restaurant boss who he has an emotional attachment to that he doesn't know how to deal with. He turns to Kiriya, who in turn has his own past to get over.

Will Kyouya and Kiriya be able to overcome their pasts and find a future together?

Volume 1 contains the Extra: The Flower's Name
Volume 2 contains the Extra: Love Life