Tokura is Ryo's manager at a makeup company. He's a womanizer and doesn't understand why Ryo doesn't like women. So Ryo makes a move on Tokura and they start dating.
Tokura doesn't seem to have any issue with being in a homosexual relationship. He's more troubled by being with a coworker. He is a total workaholic and the relationship drama all stems from that.
24 Jikan Ochi nai Kiss